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INTEGRATED CIRCUITS
PDIUSBH11A Universal Serial Bus Hub
Product specification Supersedes data of 1998 Jun 04 1999 Jul 22
Philips Semiconductors
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
FEATURES
* Complies with the Universal Serial Bus specification Rev. 1.0 * Complies with the ACPI, OnNOW, and USB power management
requirements
DESCRIPTION
The Universal Serial Bus Hub PDIUSBH11A is a cost and feature optimized second generation USB Hub with 4 downstream ports and 3 embedded functions (compound hub). It is normally used in any microcontroller-based system and communicates with the system microcontroller over the high speed I2C serial bus. This modular approach to implementing a hub and embedded functions allows the designer to choose the optimum system microcontroller from the available wide variety. This flexibility cuts down the development time, risks and costs by allowing the use of the existing architecture and the firmware investments. This results in the fastest way to develop the most cost-effective USB peripheral solutions that need hub functionality. The PDIUSBH11A is ideally suited for computer monitors, docking stations, keyboards and many other applications that use the I2C or the SMBUS based architecture. The PDIUSBH11A conforms to the USB specification Rev 1.0, I2C serial interface and the SMBUS specifications. It is fully compliant with the Human Interface Device Class and Monitor Control Class specifications. Its low suspend power consumption along with the programmable LazyClock output allows for easy implementation of equipment that is compliant to the ACPI, OnNow and USB power management requirements. The low operating power allows the implementation of the bus powered or the compound powered hub function. The PDIUSBH11A is fully backward compatible to the first generation PDIUSBH11 hardware and software. This allows an easy running change in the manufacturing line to realize the cost savings. In addition, it also incorporates the feature enhancements like SoftConnectTM, GoodLinkTM, LazyClock, programmable clock output, lower frequency crystal oscillator, additional embedded functions and integration of termination resistors. All of these feature enhancements contribute to significant cost savings in the system implementation and at the same time ease the implementation of advanced USB functionality into the peripherals.
* Compliant with USB Human Interface Devices and Monitor
Control Class
* Compliant with System Management Bus Specification Rev. 1.0 * Four downstream ports with per packet connectivity and auto
speed detection
* Supports up to 3 embedded functions * Integrated SIE (Serial Interface Engine), FIFO memory and
transceivers
* Automatic USB protocol handling * High speed slave I2C Interface (up to 1 Mbit/s) * Compatible with the PDIUSBH11 hardware and software * Software controllable connection to USB bus (SoftConnectTM) * Good USB downstream connection indicators that blink with traffic
(GoodLinkTM)
* Low frequency 12 MHz crystal oscillator eases EMI design issues * Programmable output clock frequency * Bus powered capability with very low suspend current * Controllable LazyClock output at 30 kHz (nominal) * Single 3.3V supply with 5V tolerant I/O * Available in 32-pin SDIP and SO packages * Full-scan design with high fault coverage (>99%) insures high
quality
* Higher than 8 KV in-circuit ESD protection lowers cost of extra
components
ORDERING INFORMATION
PACKAGES 32-pin plastic SO 32-pin plastic SDIP TEMPERATURE RANGE -40C to +85C -40C to +85C OUTSIDE NORTH AMERICA PDIUSBH11A D PDIUSBH11A NB NORTH AMERICA PDIUSBH11A D PDIUSBH11A NB PKG. DWG. # SOT287-1 SOT232-1
1999 Jul 22
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853-2043 22024
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
BLOCK DIAGRAM
UPSTREAM PORT D+ 1.5k D+ SoftConnectTM ANALOG TX/RX FULL SPEED D- PLL BIT CLOCK RECOVERY INTEGRATED RAM 12 MHz
3.3V
PHILIPS SIE
MEMORY MANAGEMENT UNIT
I2C SLAVE INTERFACE
HUB REPEATER
END OF FRAME TIMERS
GENERAL PORT CONTROLLER
ANALOG TX/RX
GOODLINKTM CONTROL
ANALOG TX/RX
GOODLINKTM CONTROL
ANALOG TX/RX
GOODLINKTM CONTROL
ANALOG TX/RX
GOODLINKTM CONTROL
INTERRUPT
SDA SCL
NO LIGHT
LIT
BLINKING
D+
D-
LED
D+
D-
LED
D+
D-
LED
D+
D-
LED
NO DATA CONNECTED CONNECTION TRANSFER GOODLINKTM
DOWNSTREAM PORT 2
DOWNSTREAM PORT 3
DOWNSTREAM PORT 4
DOWNSTREAM PORT 5
SV00839
NOTE: 1. This is a conceptual block diagram and does not include each individual signal.
1999 Jul 22
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Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
Analog Transceivers
These transceivers interface directly to the USB cables through some termination resistors. They are capable of transmitting and receiving serial data at both "full speed" (12 Mbit/s) and "low speed" (1.5 Mbit/s) data rates.
Memory Management Unit (MMU) and Integrated RAM
The MMU and the integrated RAM is used to handle the large difference in data rate between USB, running in bursts of 12 Mbit/s and the I2C interface to the microcontroller, running at up to 1 Mbit/s. This allows the microcontroller to read and write USB packets at its own speed through I2C.
Hub Repeater
The hub repeater is responsible for managing connectivity on a per packet basis. It implements packet signaling connectivity and resume connectivity. Low speed devices can be connected to downstream ports since the repeater will not propagate upstream packets to downstream ports, to which low speed devices are connected, unless they are preceded by a PREAMBLE PID.
I2C Slave Interface
This block implements the necessary I2C interface protocol. A slave I2C allows for simple micro-coding. An interrupt is used to alert the microcontroller whenever the PDIUSBH11A needs attention. As a slave I2C device, the PDIUSBH11A I2C clock: SCL is an input and is controlled by the microcontroller. The I2C interface can run up to 1 Mbit/s.
End of Frame Timers
This block contains the specified EOF1 and EOF2 timers which are used to detect loss-of-activity and babble error conditions in the hub repeater. The timers also maintain the low-speed keep-alive strobe which is sent at the beginning of a frame.
SoftConnectTM
The connection to the USB is accomplished by bringing D+ (for high-speed USB device) high through a 1.5 k pull-up resistor. In the PDIUSBH11A, the 1.5 k pull-up resistor is integrated on-chip and is not connected to VCC by default. Similarly, the 15 k pull-down resistors are integrated on-chip and are not connected to GND by default. The connection of the internal resistors to Vcc or GND is established through a command sent by the external/system microcontroller. This allows the system microcontroller to complete its initialization sequence before deciding to establish connection to the USB. Re-initialization of the USB bus connection can also be affected without requiring the pull out of the cable. The PDIUSBH11A will check for USB VBUS availability before the connection can be established. VBUS sensing is provided through OCURRENT_N pin. See the pin description for details. Sharing of VBUS sensing and overcurrent sensing can be easily accomplished by using VBUS voltage as the pull-up voltage for the open drain output of the overcurrent indication device. It should be noted that the tolerance of the internal resistors is higher (30%) than that specified by the USB specification (5%). However, the overall VSE voltage specification for the connection can still be met with good margin. The decision to make use of this feature lies with the users. SoftConnectTM is a patent pending technology from Philips Semiconductors.
General and Individual Port Controller
The general and individual port controllers together provide status and control of individual downstream ports. Via the I2C-interface a microcontroller can access the downstream ports and request or change the status of each individual port. Any change in the status or settings of the individual port will result in an interrupt request. Via an interrupt register, the servicing microcontroller can look up the downstream port which generated the interrupt and request its new status. Any port status change can then be reported to the host via the hub status change (interrupt) endpoint.
PLL
A 12 MHz to 48 MHz clock multiplier PLL (Phase-Locked Loop) is integrated on-chip. This allows for the use of low-cost 12 MHz crystal. EMI is also minimized due to lower frequency crystal. No external components are needed for the operation of the PLL.
Bit Clock Recovery
The bit clock recovery circuit recovers the clock from the incoming USB data stream using 4X over-sampling principle. It is able to track jitter and frequency drift specified by the USB specification.
GoodLinkTM
Good downstream USB connection indication is provided through GoodLinkTM technology. When the port is enabled and there is at least one valid upstream traffic from the port, the LED indicator will be ON. The LED indicator will blink on every valid upstream traffic. A valid upstream traffic is defined as traffic with a good SOP and terminated by a good EOP. During global suspend, all LEDs will be OFF. This feature provides a user-friendly indicator on the status of the hub, the connected downstream devices and the USB traffic. It is a useful field diagnostics tool to isolate the faulty equipment. This feature helps lower the field support and the hotline costs.
Philips Serial Interface Engine (PSIE)
The Philips SIE implements the full USB protocol layer. It is completely hardwired for speed and needs no firmware intervention. The functions of this block include: synchronization pattern recognition, parallel/serial conversion, bit stuffing/de-stuffing, CRC checking/generation, PID verification/generation, address recognition, handshake evaluation/generation.
1999 Jul 22
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Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
ENDPOINT DESCRIPTIONS
There are two endpoint configuration modes supported by the PDIUSBH11A, the Single Embedded Function mode and the Multiple (3) Embedded Function mode. The Single Embedded Function mode is the default at power up reset. The Multiple (3) Embedded Function mode can be configured by writing a zero to bit 7 of the first byte of the Set Mode command. Either mode is backward compatible to the PDIUSBH11.
Table 1. Single Embedded Function mode (default at power up)
FUNCTION PORTS ENDPOINT # ENDPOINT INDEX 0 1 - 2 3 5 4 6 7 8 9 TRANSFER TYPE Control Interrupt Control Generic Generic Generic DIRECTION OUT IN IN OUT IN OUT IN OUT IN OUT IN MAX PACKET SIZE (BYTES) 8 8 1 8 8 8 8 8 8 8 8
Hub
0: Upstream 2-5: Downstream
0 1 0 1
Embedded Function 1
1
2 3
NOTES: 1. Hub interrupt endpoint is not indexed. 2. Generic endpoint can be used for Interrupt or Bulk endpoint.
Table 2. Multiple (3) Embedded Function mode
FUNCTION PORTS ENDPOINT # ENDPOINT INDEX 0 1 - 2 3 5 4 10 11 6 7 12 13 8 9 TRANSFER TYPE Control Interrupt Control Generic Control Generic Control Generic DIRECTION OUT IN IN OUT IN OUT IN OUT IN OUT IN OUT IN OUT IN MAX PACKET SIZE (BYTES) 8 8 1 8 8 8 8 8 8 8 8 8 8 8 8
Hub
0: Upstream 2-5: Downstream
0 1 0
Embedded Function 1
1 1 0
Embedded Function 6
6 1 0
Embedded Function 7
7 1
1999 Jul 22
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Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
PIN DESCRIPTION
The PDIUSBH11A has two modes of operation. The first mode (Mode 0) configures the pins DNx_GL_N for GoodLinkTM LED indication. The second mode (Mode 1) configures the LED pins as per port overcurrent condition pins. An overcurrent condition on any port can be uniquely identified in Mode 1. However, all downstream ports are disabled as a result of a single overcurrent condition. In addition to the two modes of operation, the PDIUSBH11A can also be configured to take either a 48 MHz crystal oscillator (for backward compatibility to PDIUSBH11) or a 12 MHz crystal. The internal 4X clock multiplier PLL will be activated when 12 MHz input XTAL mode is selected. Also, the output clock frequency is now programmable rather than fixed to 12 MHz. The output clock frequency can be programmed through the Set Mode command. All these new features are added while maintaining backward compatibility to the PDIUSBH11 through TEST2 and TEST1 pins. TEST2 TEST1 00 01 10 11 MODE MODE 0 (GoodLinkTM) MODE 0 (GoodLinkTM) MODE 1 (Individual Overcurrent) MODE 1 (Individual Overcurrent) INPUT XTAL FREQUENCY (MHz) 48 12 12 48 OUTPUT CLOCK FREQUENCY (AT RESET) 12MHz 4 MHz 4 MHz 12 MHz
NOTE: 1. Pin TEST3 should always be connected to Ground at all times.
Pin configuration
TEST1 TEST2 TEST3 RESET_N GND XTAL1 XTAL2 CLKOUT VCC OCURRENT_N / OCURRENT2_N * 1 2 3 4 5 6 7 8 9 10 DUAL IN-LINE PACKAGE 32 UP_DM 31 UP_DP 30 AVCC 29 AGND 28 DN2_DM 27 DN2_DP 26 DN3_DM 25 DN3_DP 24 DN4_DM 23 DN4_DP 22 DN5_DM 21 DN5_DP 20 GND 19 SCL 18 SDA 17 INT_N
SWITCH_N 11 SUSPEND 12 DN2_GL_N 13
DN3_GL_N / OCURRENT3_N * 14 DN4_GL_N / OCURRENT4_N * 15 DN5_GL_N / OCURRENT5_N * 16
SV01047
NOTE: Pins 10, 14, 15, and 16 show alternative pin functions, depending on mode of operation (Mode 0 or Mode 1) as described in Pin Description.
1999 Jul 22
6
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
Pin description (MODE 0 - Good LinkTM)
PIN NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PIN SYMBOL TEST1 TEST2 TEST3 RESET_N GND XTAL1 XTAL2 CLKOUT VCC OCURRENT_N SWITCH_N SUSPEND DN2_GL_N DN3_GL_N DN4_GL_N DN5_GL_N INT_N SDA SCL GND DN5_DP DN5_DM DN4_DP DN4_DM DN3_DP DN3_DM DN2_DP DN2_DM AGND AVCC UP_DP UP_DM TYPE Input Input Input Input Power Input Output Output Power Input Output Output Output Output Output Output Output I/O I/O Power AI/O AI/O AI/O AI/O AI/O AI/O AI/O AI/O Power Power AI/O AI/O ST OD6 OD6 OD6 OD6 OD6 OD6 OD6 OD6 OD6 3mA ST DRIVE DESCRIPTION Connect to Ground for 48MHz crystal input. Connect to VCC for 12MHz crystal input. Connect to Ground Connect to Ground Power-on reset Ground reference Crystal connection 1 (48 or 12MHz depending on TEST1 pin) Crystal connection 2 (48 or 12MHz depending on TEST1 pin) Programmable output clock for external devices Voltage supply 3.3V 0.3V Overcurrent notice to the device. This pin is also used to sense the USB VBUS. A LOW on this pin of less than 2 seconds is interpreted as an overcurrent notice; longer than 2 seconds is interpreted as loss of VBUS. Enables power to downstream ports Device is in suspended state Downstream port 2 GoodLinkTM LED indicator Downstream port 3 GoodLinkTM LED indicator Downstream port 4 GoodLinkTM LED indicator Downstream port 5 GoodLinkTM LED indicator Connect to microcontroller interrupt I2C bi-directional data I2C bit-clock Ground reference Downstream port 5 D+ connection Downstream port 5 D- connection Downstream port 4 D+ connection Downstream port 4 D- connection Downstream port 3 D+ connection Downstream port 3 D- connection Downstream port 2 D+ connection Downstream port 2 D- connection Analog Ground reference Analog voltage supply 3.3V 0.3V Upstream D+ connection Upstream D- connection
NOTES: 1. Signals ending in _N indicate active low signals. ST: Schmitt Trigger OD6: Open Drain with 6 mA drive AI/O: Analog I/O
1999 Jul 22
7
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
Pin description (MODE 1 - Individual Overcurrent)
PIN NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PIN SYMBOL TEST1 TEST2 TEST3 RESET_N GND XTAL1 XTAL2 CLKOUT VCC OCURRENT2_N SWITCH_N SUSPEND DN2_GL_N OCURRENT3_N OCURRENT4_N OCURRENT5_N INT_N SDA SCL GND DN5_DP DN5_DM DN4_DP DN4_DM DN3_DP DN3_DM DN2_DP DN2_DM AGND AVCC UP_DP UP_DM TYPE Input Input Input Input Power Input Output Output Power Input Output Output Output Input Input Input Output I/O I/O Power AI/O AI/O AI/O AI/O AI/O AI/O AI/O AI/O Power Power AI/O AI/O ST OD6 OD6 OD6 ST ST ST OD6 OD6 OD6 3mA ST DRIVE DESCRIPTION Connect to VCC for 48MHz crystal input. Connect to Ground for 12MHz crystal input. Connect to VCC Connect to Ground Power-on reset Ground reference Crystal connection 1 (48 or 12MHz depending on TEST1 pin) Crystal connection 2 (48 or 12MHz depending on TEST1 pin) Programmable output clock for external devices Voltage supply 3.3V 0.3V Downstream port 2 overcurrent notice. This pin is also used to sense the USB VBUS. A LOW on this pin of less than 2 seconds is interpreted as an overcurrent notice; longer than 2 seconds is interpreted as loss of VBUS. Enables power to downstream ports Device is in suspended state Downstream port 2 GoodLinkTM LED indicator Downstream port 3 over-current notice Downstream port 4 over-current notice Downstream port 5 over-current notice Connect to microcontroller interrupt I2C bi-directional data I2C bit-clock Ground reference Downstream port 5 D+ connection Downstream port 5 D- connection Downstream port 4 D+ connection Downstream port 4 D- connection Downstream port 3 D+ connection Downstream port 3 D- connection Downstream port 2 D+ connection Downstream port 2 D- connection Analog Ground reference Analog voltage supply 3.3V 0.3V Upstream D+ connection Upstream D- connection
NOTES: 1. Signals ending in _N indicate active low signals. ST: Schmitt Trigger OD6: Open Drain with 6 mA drive AI/O: Analog I/O
1999 Jul 22
8
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
APPLICATION DIAGRAM
USB UPSTREAM 12MHz CLKOUT
3.3V
I2C H11A C
5V POWER SWITCH AND OVERCURRENT CIRCUIT
USB DOWNSTREAM SWITCHED 5V GOODLINKTM LED
SV00840
I2C Interface
The I2C bus is used to interface to an external microcontroller needed to control the operation of the hub. For cost consideration, the target system microcontroller can be shared and utilized for this purpose. The PDIUSBH11A implements a slave I2C interface. When the PDIUSBH11A needs to communicate with the microcontroller it asserts an interrupt signal. The microcontroller services this interrupt by reading the appropriate status register on the PDIUSBH11A through the I2C bus. (For more information about the I2C serial bus, refer to the I 2C Handbook, Philips order number 9397 750 00013). The I2C interface on the PDIUSBH11A defines two types of transactions: 1. command transaction A command transaction is used to define which data (e.g., status byte, buffer data, ...) will be read from / written to the USB interface in the next data transaction. A data transaction usually follows a command transaction. 2. data transaction A data transaction reads data from / writes data to the USB interface. The meaning of the data is dependent on the command transaction which was sent before the data transaction. Two addresses are used to differentiate between command and data transactions. Writing to the command address is interpreted as a command, while reading from / writing to the data address is used to transfer data between the PDIUSBH11A and the controller.
Protocol
An I2C transaction starts with a Start Condition, followed by an address. When the address matches either the command or data address the transaction starts and runs until a Stop Condition or another Start Condition (repeated start) occurs. The command address is write-only and is unable to do a read. The next bytes in the message are interpreted as commands. Several command bytes can be sent after one command address. Each of the command bytes is acknowledged and passed on to the Memory Management Unit inside the PDIUSBH11A. When the start condition address matches the data address, the next bytes are interpreted as data. When the RW bit in the address indicates a `master writes data to slave' (=`0') the bytes are received, acknowledged and passed on to the Memory Management Unit. If the RW bit in the address indicates a `master reads data from slave' (=`1') the PDIUSBH11A will send data to the master. The I2C-master must acknowledge all data bytes except the last one. In this way the I2C interface knows when the last byte has been transmitted and it then releases the SDA line so that the master controller can generate the STOP condition. Repeated start support allows another packet to be sent without generating a Stop Condition. Timing The I2C interface in the PDIUSBH11A can support clock speeds up to 1MHz.
ADDRESS TABLE
TYPE OF ADDRESS Command Data PHYSICAL ADDRESS (MSB to LSB) 0011 011 (binary) 0011 010 (binary)
1999 Jul 22
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Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
COMMAND SUMMARY
Some commands have the same command code (e.g., Read Buffer and Write Buffer). In these cases, the direction of the Data Phase (read or write) indicates which command is executed. COMMAND NAME Set Address / Enable RECIPIENT Initialization Commands Hub Embedded Function 1 Embedded Function 6 Embedded Function 7 Set Endpoint Enable Set Mode Read Interrupt Register Select Endpoint Hub Control OUT Hub Control IN Other Endpoints Read Last Transaction Status Hub Control OUT Hub Control IN Other Endpoints Read Endpoint Status Hub Control OUT Hub Control IN Other Endpoints Read Buffer Write Buffer Set Endpoint Status Selected Endpoint Selected Endpoint Hub Control OUT Hub Control IN Other Endpoints Acknowledge Setup Clear Buffer Validate Buffer Clear Port Feature Selected Endpoint Selected Endpoint Selected Endpoint Hub Commands Port 2 Port 3 Port 4 Port 5 Set Port Feature Port 2 Port 3 Port 4 Port 5 Get Port Status Port 2 Port 3 Port 4 Port 5 Set Status Change Bits General Commands Send Resume Read Current Frame Number F6h F5h None Read 1 or 2 bytes E0h E1h E2h E3h E8h E9h EAh EBh E0h E1h E2h E3h F7h Write 1 byte Write 1 byte Write 1 byte Write 1 byte Write 1 byte Write 1 byte Write 1 byte Write 1 byte Read 1 or 2 bytes Read 1 or 2 bytes Read 1 or 2 bytes Read 1 or 2 bytes Write 1 byte Hub + Embedded Functions Hub + Embedded Functions Data Flow Commands F4h 00h 01h 00h + Endpoint Index 40h 41h 40h + Endpoint Index 80h 81h 80h + Endpoint Index F0h F0h 40h 41h 40h + Endpoint Index F1h F2h FAh Read 2 bytes Read 1 byte (optional) Read 1 byte (optional) Read 1 byte (optional) Read 1 byte Read 1 byte Read 1 byte Read 1 byte Read 1 byte Read 1 byte Read n bytes Write n bytes Write 1 byte Write 1 byte Write 1 byte None None None D0h D1h D2h D3h D8h F3h Write 1 byte Write 1 byte Write 1 byte Write 1 byte Write 1 byte Write 2 bytes CODING DATA PHASE
1999 Jul 22
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Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
COMMAND DESCRIPTIONS Command Procedure
There are four basic types of commands: Initialization, Data, Hub Specific, and General commands. Respectively, these are used to initialize the hub and embedded function; for data flow between the hub, embedded function, and the host; some Hub Specific commands for controlling individual downstream ports; and some General commands.
Set Endpoint Enable
Command Data : D8h : Write 1 byte
The hub's interrupt endpoint and the embedded functions generic endpoints can only be enabled when the corresponding hub/function is enabled via the Set Address/Enable command.
7 X 6 X 5 X 4 X 3 0 2 0 1 0 0 0
Initialization Commands
Initialization commands are used during the enumeration process of the USB network. These commands are used to enable the hub and embedded function endpoints. They are also used to set the USB assigned address.
POWER ON VALUE HUB'S INTERRUPT ENDPOINT EMBEDDED FUNCTION 1 GENERIC ENDPOINTS EMBEDDED FUNCTION 6 GENERIC ENDPOINTS EMBEDDED FUNCTION 7 GENERIC ENDPOINTS RESERVED
Set Address / Enable
Command Data : D0h (Hub), D1h, D2h, D3h, (Embedded Functions) : Write 1 byte Hub's Interrupt Endpoint Embedded Function 1 Generic Endpoint
SV00841
A value of `1' indicates the hub's interrupt endpoint is enabled. A value of `1' indicates the embedded function 1 generic endpoints are enabled. A value of `1' indicates the embedded function 6 generic endpoints are enabled. A value of `1' indicates the embedded function 7 generic endpoints are enabled.
This command is used to set the USB assigned address and enable the hub or embedded functions respectively. The hub powers up enabled and needs not be enabled by the firmware at power up initialization.
Embedded Function 6 Generic Endpoint
7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 POWER ON VALUE ADDRESS ENABLE
Embedded Function 7 Generic Endpoint
SV00825
Address Enable
The value written becomes the address. A `1' enables this function.
1999 Jul 22
11
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
Set Mode
Command Data : F3h : Write 2 bytes
The Set Mode command is followed by two data writes. The first byte contains the configuration byte values. The second byte is the clock division factor byte. Configuration Byte
7 1 6 0 5 0 4 0 3 1 2 1 1 0 0 1
Connect Downstream Resistors A `1' indicates that downstream resistors are connected. A `0' means that downstream resistors are not connected. The programmed value will not be changed by a bus reset. Non-blinking LEDs A `1' indicates that GoodLinkTM LEDs will NOT blink when there is traffic. Leave this bit at `0' to achieve blinking LEDs. The programmed value will not be changed by a bus reset. A `1' indicates single embedded function mode. A `0' indicates multiple (3) embedded function mode. See endpoint descriptions for details. The programmed value will not be changed by a bus reset.
POWER ON VALUE REMOTE WAKEUP NO LAZYCLOCK CLOCK RUNNING DEBUG MODE SoftConnectTM CONNECT DOWNSTREAM RESISTORS NON-BLINKING LEDs EMBEDDED FUNCTION MODE
Embedded Function Mode
Clock Division Factor Byte
7 X X 6 X X 5 0 1 4 0 1 3 0 1 2 0 0 1 1 1 0 1 1
SV00842
POWER ON VALUE FOR 48MHz INPUT POWER ON VALUE FOR 12MHz INPUT
Remote Wakeup No LazyClock
A `1' indicates that a remote wakeup feature is ON. Bus reset will set this bit to `1'. A `1' indicates that CLKOUT will not switch to LazyClock. A `0' indicates that the CLKOUT switches to LazyClock 1ms after the Suspend pin goes high. LazyClock frequency is 30 kHz ( 40%). The programmed value will not be changed by a bus reset. A `1' indicates that the internal clocks and PLL are always running even during Suspend state. A `0' indicates that the internal clock, crystal oscillator and PLL are stopped whenever not needed. To meet the strict Suspend current requirement, this bit needs to be set to `0'. The programmed value will not be changed by a bus reset. A `1' indicates that all errors and "NAKing" are reported and a `0' indicates that only OK and babbling are reported. The programmed value will not be changed by a bus reset. A `1' indicates that the upstream pull-up resistor will be connected if VBUS is available. A `0' means that the upstream resistor will not be connected. The programmed value will not be changed by a bus reset.
CLOCK DIVISION FACTOR RESERVED
SV00843
Clock Division Factor
Clock Running
Debug Mode
The value indicates clock division factor for CLKOUT. The output frequency is 48 MHz/(N+1) where N is the Clock Division Factor. When the 48MHz input crystal frequency is selected, the reset value is 3. This will give a default output frequency at CLKOUT pin of 12 MHz, thus maintaining backward compatibility to the PDIUSBH11. When the 12 MHz input crystal frequency is selected, the reset value is 11. This will produce the lowest output frequency of 4 MHz which can then be programmed up by the user. The PDIUSBH11A design ensures no glitching during frequency change. The programmed value will not be changed by a bus reset.
SoftConnectTM
1999 Jul 22
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Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
Data Flow Commands
Data flow commands are used to manage the data transmission between the USB endpoints and the monitor. Much of the data flow is initiated via an interrupt to the microcontroller. The microcontroller utilizes these commands to access and determine whether the endpoint FIFOs have valid data.
Select Endpoint
Command Data : 00-0Dh : Optional Read 1 byte
Read Interrupt Register
Command Data : F4h : Read 2 bytes
The Select Endpoint command initializes an internal pointer to the start of the Selected buffer. Optionally, this command can be followed by a data read, which returns `0' if the buffer is empty and `1' if the buffer is full.
7 X
6 X
5 X
4 X
3 X
2 X
1 X
0 0
POWER ON VALUE FULL/EMPTY
Interrupt Register Byte 1
7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 RESERVED POWER ON VALUE ENDPOINT INDEX 0 (HUB CONTROL OUT) ENDPOINT INDEX 1 (HUB CONTROL IN) ENDPOINT INDEX 2 ENDPOINT INDEX 3 ENDPOINT INDEX 4 ENDPOINT INDEX 5 ENDPOINT INDEX 6 ENDPOINT INDEX 7
SV00831
Full/Empty
A `1' indicates the buffer is full, `0' indicates an empty buffer.
Read Last Transaction Status
Command Data : 40-4Dh : Read 1 byte
SV00844
Interrupt Register Byte 2
7 X 6 0 5 0 4 0 3 0 2 0 1 0 0 0
The Read Last Transaction Status command is followed by one data read that returns the status of the last transaction of the endpoint. This command also resets the corresponding interrupt flag in the interrupt register, and clears the status, indicating that it was read.
POWER ON VALUE ENDPOINT INDEX 8 ENDPOINT INDEX 9 ENDPOINT INDEX 10 ENDPOINT INDEX 11 ENDPOINT INDEX 12 ENDPOINT INDEX 13 BUS RESET RESERVED 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 POWER ON VALUE DATA RECEIVE/TRANSMIT SUCCESS ERROR CODE (SEE TABLE) SETUP PACKET
This command is useful for debugging purposes. Since it keeps track of every transaction, the status information is overwritten for each new transaction.
SV00845
DATA 0/1 PACKET PREVIOUS STATUS NOT READ SV00832
This command indicates the origin of an interrupt. A `1' indicates an interrupt occurred at this endpoint. The bits are cleared by reading the endpoint status register through Read Endpoint Status command. After a bus reset an interrupt will be generated and bit 6 of the Interrupt Register Byte 2 will be `1'. [In the PDIUSBH11, the bus reset event is indicated by the absence of a `1' in any bit of the Interrupt Register. Note that the backward compatibility is still maintained because in the PDIUSBH11, the Interrupt Register Byte 2 does not exist.] The bus reset interrupt is internally cleared by reading the interrupt register. A bus reset is completely identical to the hardware reset through the RESET_N pin with the sole difference of interrupt notification. The hub interrupt endpoint is handled internally by the PDIUSBH11A hardware without the need of microcontroller intervention.
Data Receive/Transmit Success A `1' indicates data has been received or transmitted successfully. Error Code Setup Packet See Table 3, Error Codes. A `1' indicates the last successful received packet had a SETUP token (this will always read `0' for IN buffers. A `1' indicates the last successful received or sent packet had a DATA1 PID. A `1' indicates a second event occurred before the previous status was read.
Data 0/1 Packet
Previous Status not Read
1999 Jul 22
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Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
Table 3. ERROR CODES
ERROR CODE 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1101 1111 No Error PID encoding Error; bits 7-4 are not the inversion of bits 3-0 PID unknown; encoding is valid, but PID does not exist Unexpected packet; packet is not of the type expected (= token, data or acknowledge), or SETUP token to a non-control endpoint Token CRC Error Data CRC Error Time Out Error Babble Error Unexpected End-of-packet Sent or received NAK Sent Stall, a token was received, but the endpoint was stalled Overflow Error, the received packet was longer than the available buffer space Bitstuff Error Wrong DATA PID; the received DATA PID was not the expected one RESULT
Read Buffer
Command Data : F0h : Read multiple bytes (max 10)
The Read Buffer command is followed by a number of data reads, which return the contents of the selected endpoint data buffer. After each read, the internal buffer pointer is incremented by 1. The buffer pointer is not reset to the buffer start by the Read Buffer command. This means that reading or writing a buffer can be interrupted by any other command (except for Select Endpoint), or can be done by more than one I2C transaction (read the first 2 bytes to get the number of data bytes, then read the rest in other transactions). The data in the buffer are organized as follows:
* byte 0: * byte 1: * byte 2: * byte 3:
Reserved: can have any value Number/length of data bytes Data byte 1 Data byte 2
Write Buffer
Command Data : F0h : Write multiple bytes (max 10)
Read Endpoint Status
Command Data
7 X 6 X
The Write Buffer command is followed by a number of data writes, which load the endpoints buffer. The data must be organized in the same way as described in the Read Buffer command. The first byte (reserved) should always be `0'. As in the Read Buffer command, the data can be split up into different I2C data transactions. WARNING: There is no protection against writing or reading over a buffer's boundary or against writing into an OUT buffer or reading from an IN buffer. Any of these actions could cause an incorrect operation. Data in an OUT buffer are only meaningful after a successful transaction.
: 80-8Dh : Read 1 byte
5 0 4 0 3 0 2 0 1 X 0 X
POWER ON VALUE RESERVED SETUP PACKET STALL DATA 0/1 PACKET BUFFER FULL RESERVED
Clear Buffer
Command Data : F2h : None
SV00833
Setup Packet STALL Data 0/1 Packet Buffer Full
A `1' indicates the last received packet had a SETUP token. A `1' indicates the endpoint is stalled. A `1' indicates if the last received or sent packet had a DATA1 PID. A `1' indicates that the buffer is full.
When a packet is received completely, an internal endpoint buffer full flag is set. All subsequent packets will be refused by returning a NAK. When the microcontroller has read the data, it should free the buffer by the Clear Buffer command. When the buffer is cleared new packets will be accepted.
Validate Buffer
Command Data : FAh : None
When the microprocessor has written data into an IN buffer, it should set the buffer full flag by the Validate Buffer command. This indicates that the data in the buffer are valid and can be sent to the host when the next IN token is received.
1999 Jul 22
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Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
Set Endpoint Status
Command Data : 40-4Dh : Write 1 byte
Hub Commands
Hub commands are used to report connectivity and power status between the hub and the host. These commands allow the host to enable each port individually and get any change of status such as new connectivity information.
A stalled control endpoint is automatically unstalled when it receives a SETUP token, regardless of the content of the packet. If the endpoint should stay in its stalled state, the microcontroller can re-stall it. When a stalled endpoint is unstalled (either by the Set Endpoint Status command or by receiving a SETUP token), it is also re-initialized. This flushes the buffer and if it is an OUT buffer it waits for a DATA 0 PID, if it is an IN buffer it writes a DATA 0 PID. Even when unstalled, writing Set Endpoint Status to `0' initializes the endpoint.
Clear/Set Port Feature
Command Data : E0-E3h (Clear) and E8h-EBh (Set) : Write 1 byte
The data written in the data phase is the feature code described in Table 4. When the controller receives a Set Feature or a Clear Feature request, there are two possibilities: The request applies to port 1, the embedded port. In this case the request should be handled internally by the controller.
7 X
6 X
5 X
4 X
3 X
2 X
1 X
0 0
POWER ON VALUE STALLED RESERVED
If the request applies to ports 2 through 5, the controller should translate the request into a Set Feature or Clear Feature command towards the PDIUSBH11A. When the PDIUSBH11A is configured in mode 0, there is only one power switch output and one overcurrent input. This means that the F_PORT_POWER and C_PORT_OVERCURRENT features are not port specific. For these features, any of the Set / Clear Feature commands can be used. The specific port assignment is ignored. When the PDIUSBH11A is configured in mode 1, there is still only one power switch output but there are four individual overcurrent input pins corresponding to each port. This means that the F_PORT_POWER feature is port specific and the C_PORT_OVERCURRENT feature is not port specific. Setting the F_PORT_POWER feature turns the power on when it is off and turns the overcurrent detection on only when the power is already on. This allows to have a short period of overcurrent condition at the moment that power is switched on. For this reason, the F_PORT_POWER feature needs to be set twice. Clearing this feature turns both the power and the overcurrent detection off.
SV00834
Stalled
A `1' indicates the endpoint is stalled.
Acknowledge Setup
Command Data : F1h : None
The arrival of a SETUP packet flushes the IN buffer and disables the Validate Buffer and Clear Buffer commands for both IN and OUT endpoints. The microcontroller needs to re-enable these commands by the Acknowledge Setup command. This ensures that the last SETUP packet stays in the buffer and no packet can be sent back to the host until the microcontroller has acknowledged explicitly that it has seen the SETUP packet. The microcontroller must send the Acknowledge Setup command to both the IN and OUT endpoints.
Table 4. Data written in data phase
FEATURE F_PORT_ENABLE F_PORT_SUSPEND FC_PORT_RESET F_PORT_POWER C_PORT_CONNECTION C_PORT_ENABLE C_PORT_SUSPEND C_PORT_OVERCURRENT FEATURE CODE 0 1 2 3 4 5 6 7 SET Enables a port Suspends a port Resets a port Powers all ports - - - - Disables a port Resumes a port Clears a port Reset Change bit Unpowers all ports Clears a port Connection Change bit Clears a port Enable Change bit Clears a port Suspend Change bit Clears a port (Mode 1) or hub (Mode 0) Overcurrent Change bit CLEAR
1999 Jul 22
15
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
Get Port Status
Command Data : E0h-E3h : Read 1 or 2 bytes
Port Status Change Byte The description for the Port Status Change Byte is similar to the Port Status Byte except that the value of the bits are `1' only when a change has occurred.
7 X 6 X 5 X 4 0 3 0 2 0 1 0 0 0
The Get Port Status Command can be followed by one or two data reads. The first byte returned contains the port status. The second byte returned is the port status change byte. Port Status Byte
7 X 6 0 5 0 4 0 3 0 2 0 1 0 0 0
POWER ON VALUE CONNECT ENABLED SUSPEND
POWER ON VALUE CONNECT ENABLED SUSPEND OVERCURRENT RESET POWER LOW SPEED RESERVED
OVERCURRENT RESET
RESERVED
SV00847
Set Status Change Bits
Command Data : F7h : Write 1 byte
SV00846
Connect Enabled Suspend OverCurrent
A `1' indicates that a device is connected on this port of the hub. A `1' indicates that this port is enabled. A `1' indicates that this port is suspended. A `1' indicates that overcurrent condition exists on this port. In mode 0 of operation, this bit is the same for all ports. In mode 1, individual port overcurrent indication is possible. A `1' indicates that bus reset on this port is in progress. When reset is completed (nominal duration of 10 ms), this bit indicates a `0'. A `1' indicates that power is supplied to downstream ports. Since the PDIUSBH11A supports gang mode power switching, this bit is the same for all ports. A `1' indicates that low speed device is connected to this port. This bit is only valid when Connect bit is a `1'.
For assembling the hub's status change register, the device needs some additional information from the controller, i.e. the Local Power Status Change bit and the embedded function Status Change bit. These are provided by the Set Status Change Bits command. This command is always followed by one data write which contains the Local Power Status Change bit at the LSB and the embedded function Status Change bit at position 1. All other bits should be 0.
7 X
6 X
5 X
4 X
3 0
2 0
1 0
0 0
POWER ON VALUE LOCAL POWER EMBEDDED FUNCTION 1 EMBEDDED FUNCTION 6 EMBEDDED FUNCTION 7 RESERVED
Reset
Power
SV00848
Low Speed
1999 Jul 22
16
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
General Commands Send Resume
Command Data : F6h : None
SetFeature PORT_SUSPEND
Disable the function by the Set embedded function Address / Enable command. Reset the Enable Status bit and set the Suspend Status bit.
ClearFeature PORT_ENABLE
Disable the function by the Set embedded function Address / Enable command. Reset the Enable Status bit.
Sends an upstream resume signal for 10 ms. This command is normally issued when the device is in suspend. The RESUME command is not followed by a data read or write. The PDIUSBH11A automatically sends a RESUME command when an event occurs downstream.
ClearFeature PORT_SUSPEND
Enable the function by the Set embedded function Address / Enable command. Set the Enable Status bit, reset the Suspend Status bit; set the Resume Status Change bit to indicate that the resume has completed.
Read Current Frame Number
Command Data : F5h : Read One or Two Bytes
ClearFeature any Change Indicator
Clear the corresponding status change bit.
This command is followed by one or two data reads and returns the frame number of the last successfully received SOF. The frame number is returned Least Significant Byte first.
Babbling condition
When the embedded function causes a babbling condition, the function is automatically disabled by the PDIUSBH11A. As soon as the microcontroller detects the babbling error, it must set the Enable Status Change bit and reset the Enable Status bit.
7 X
6 X
5 X
4 X
3 X
2 X
1 X
0 X
LEAST SIGNIFICANT BYTE
Remote WakeUp
7 X 6 X 5 X 4 X 3 X 2 X 1 X 0 X MOST SIGNIFICANT BYTE
There are three scenarios when a remote wakeup can occur. The following describes the course of actions for each of the cases: 1. The device is not suspended and the embedded port is suspended: Enable back the function by setting the enable bit in the Set Address/Enable register and update the following status bits in the microcontroller program: reset the Suspend Status bit, set the Enable Status bit and set the Suspend Status Change bit. 2. The device is suspended and the embedded port is suspended: Send an upstream Resume using the Send Resume command, enable back the function by setting the enable bit in the Set Address/Enable register and update the following status bits in the microcontroller program: reset the Suspend Status bit, set the Enable Status bit and set the Suspend Status Change bit. 3. The device is suspended and the embedded port is enabled: Send an upstream resume using the Send Resume command.
SV00835
Embedded Function
The USB host sees no difference between the embedded function and a function connected to one of the downstream ports. Some of the port commands sent by the host must be handled appropriately by the embedded function to appear as any other downstream port. The microcontroller maintains a series of status and status change bits for the embedded function as described in the Get Port Status command section. From these bits, the Status Change bit for the embedded function is derived (i.e. the port specific Status Change bits). This Status Change bit is then provided to the PDIUSBH11A by the Set Status Change Bits command.
Host Requests SetFeature PORT_RESET
Reinitialize the embedded function and set the Reset Change bit to indicate that the reset has completed. Reset the Enable Status bit, enable the embedded function and set its address to 0 by the Set embedded function Address / Enable command. Disable the embedded function interrupt endpoint by the Set Endpoint Enable command.
SetFeature PORT_ENABLE
Enable the function by the Set embedded function Address / Enable command. Set the Enable Status bit.
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Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
RECOMMENDED OPERATING CONDITIONS
SYMBOL VCC VI VI/O VAI/O VO Tamb PARAMETER DC supply voltage DC input voltage range DC input voltage range for I/O DC input voltage range for analog I/O DC output voltage range Operating ambient temperature range in free air See DC and AC characteristics per device TEST CONDITIONS MIN 3.0 0 0 0 0 -40 MAX 3.6 5.5 5.5 VCC VCC 85 UNIT V V V V V C
ABSOLUTE MAXIMUM RATINGS1
SYMBOL VCC IIK VI VI/O IOK VO IO IO IGND, ICC VESD TSTG PTOT PARAMETER DC supply voltage DC input diode current DC input voltage DC input voltage range for I/O's DC output diode current DC output voltage DC output sink or source current for other pins DC output sink or source current for D+/D- pins DC VCC or GND current Electrostatic discharge voltage Storage temperature range Power dissipation per package IL < 1 A (Note 3) - -60 VO > VCC or VO < 0 Note 2 VO = 0 to VCC VO = 0 to VCC -0.5 VI < 0 Note 2 -0.5 -0.5 TEST CONDITIONS MIN -0.5 MAX +4.6 -50 +5.5 VCC + 0.5 50 VCC + 0.5 15 50 100 4000 4 +150 UNIT V mA V V mA V mA mA mA V C
NOTES: 1. Stresses beyond those listed may cause damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those listed in the RECOMMENDED OPERATING CONDITIONS table is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. 2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 3. Values are given for device only; in-circuit VESD(MAX) = 8000V. 4. For open-drain pins VESD(MAX) = 2000V.
1999 Jul 22
18
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
DC CHARACTERISTICS (Digital pins)
SYMBOL Input Levels VIL VIH VTLH VTHL VHYS Output Levels VO OL VO OH LOW level output voltage HIGH level output voltage IOL = rated drive IOL = 20 A IOH = rated drive IOH = 20 A OD (Open Drain) pins Oscillator stopped and inputs to GND/VCC 04 ports operating 16 2.4 VCC - 0.1 5 5 15 V A A A mA 0.4 0.1 V V V LOW level input voltage HIGH level input voltage LOW to HIGH threshold voltage HIGH to LOW threshold voltage Hysteresis voltage ST (Schmitt Trigger) pins ST pins ST pins 2.7 1.4 0.9 0.4 1.9 1.5 0.7 0.6 V V V V V PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Leakage Current IOZ IL IS IO OFF state current Input leakage current Suspend current Operating current
DC CHARACTERISTICS (AI/O pins)
SYMBOL Leakage Current ILO Input Levels VDI VCM VSE Output Levels VOL VOH Capacitance CIN ZDRV2 ZPU ZPD Transceiver capacitance Driver output resistance Pull-up resistance Pull-down resistance Pin to GND Steady state drive SoftConnectTM = ON Pull-down = ON 29 1.1 11 20 44 1.9 19 pF k k Output Resistance Integrated Resistance Static output LOW Static output HIGH RL of 1.5k to 3.6V RL of 1.5k to GND 2.8 0.3 3.6 V V Differential input sensitivity Differential common mode range Single-ended receiver threshold |(D+) - (D-)|1 Includes VDI range 0.2 0.8 0.8 2.5 2.0 V V V Hi-Z state data line leakage 0V < VIN < 3.3V 10 A PARAMETER TEST CONDITIONS MIN MAX UNIT
NOTES: 1. D+ is the symbol for the USB positive data pin: UP_DP, DN2_DP, DN3_DP, DN4_DP, DN5_DP,. D- is the symbol for the USB negative data pin: UP_DM, DN2_DM, DN3_DM, DN4_DM, DN5_DM, . 2. Includes external resistors of 22 1% each on D+ and D-.
LOAD FOR D+/D-
1.5k IS INTERNAL TEST POINT 22 D. U. T. 15k CL = 50pF
SV00849
1999 Jul 22
19
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
AC CHARACTERISTICS (AI/O pins, FULL speed)
SYMBOL Driver characteristics Transition Time: Rise time Fall time Rise/fall time matching Output signal crossover voltage Source EOP width Differential data to EOP transition skew Receiver Data Jitter Tolerance To next transition For paired transitions EOP Width at Receiver Must reject as EOP Must accept Hub Differential Data Delay Data bit width distortion after SOP Hub EOP Delay Relative to tHDD Hub EOP Output Width Skew Figure 1 Figure 1 PARAMETER TEST CONDITIONS CL = 50 pF; Rpu = 1.5 k on D+ to VCC Between 10% and 90% 4 4 (tR/tF) 90 1.3 160 -2 20 20 110 2.0 175 5 ns ns % V ns ns MIN MAX UNIT
tR tF tRFM VCRS Driver Timings tEOPT tDEOP
Receiver Timings tJR1 tJR2 tEOPR1 tEOPR2 Hub Timings tHDD tSOP tEOPDR tHESK Characterized and not tested tested. Guaranteed by design. -18.5 -9 40 82 40 -5 0 -15 3 15 +15 ns 18.5 9 ns ns ns ns
Figure 1 Full Speed downstream port Figure 2 Figure 2 Figure 3 Figure 3
AC CHARACTERISTICS (AI/O pins, LOW speed)
SYMBOL Driver characteristics Transition Time: tLR tLF tRFM VLCRS Driver Timings tLEOPT tLDEOP Source EOP width Differential data to EOP transition skew EOP Width at Receiver Must reject as EOP Must accept Hub Differential Data Delay Data bit width distortion after SOP Hub EOP Delay Relative to tLHDD Hub EOP Output Width Skew Figure 1 Figure 1 Figure 1 330 675 Low Speed downstream port Figure 2 Figure 2 Figure 3 Figure 3 -65 0 -300 300 45 200 +300 ns ns ns 1.25 -40 1.50 100 s ns Rise time PARAMETER TEST CONDITIONS CL = 50 pF and 350 pF; Rpu = 1.5 k on D- to VCC Between 10% and 90% CL = 50 pF CL = 350 pF CL = 50 pF CL = 350 pF (tR/tF) 75 300 75 300 80 1.3 120 2.0 ns ns ns ns % V MIN MAX UNIT
Fall time Rise/fall time matching Output signal crossover voltage
Receiver Timings tLEOPR1 tLEOPR2 Hub Timings tLHDD tLSOP tLEOPDR tLHESK
1999 Jul 22
20
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
tPERIOD CROSSOVER POINT EXTENDED CROSSOVER POINT DIFFERENTIAL DATA LINES
SOURCE EOP WIDTH: tEOPT DIFFERENTIAL DATA TO SEO/EOP SKEW N * tPERIOD + tDEOP RECEIVER EOP WIDTH: tEOPR1, tEOPR2
SV00837
Figure 1. Differential data to EOP transition skew and EOP width
VDD CROSSOVER POINT UPSTREAMDIFFERENTIAL DATA DOWNSTREAM DIFFERENTIAL DATA CROSSOVER POINT
VSS CROSSOVER POINT DOWNSTREAMDIFFERENTIAL DATA Hub Delay Downstream tHDD UPSTREAM DIFFERENTIAL DATA Hub Delay Upstream tHDD CROSSOVER POINT
VSS A. DOWNSTREAM HUB DELAY B. UPSTREAM HUB DELAY
SOP DISTORTION tSOP = tHDD(SOP) - tHDD (NEXT J) LOW SPEED TIMINGS ARE DETERMINED IN THE SAME WAY FOR: tLHDD AND tLSOP
SV00514
Figure 2. Hub Differential Data Delay and SOP distortion
1999 Jul 22
21
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
VDD
UPSTREAMDIFFERENTIAL DATA
CROSSOVER POINT EXTENDED
DOWNSTREAM PORT
CROSSOVER POINT EXTENDED
VSS
tEOP- DOWNSTREAMDIFFERENTIAL DATA
tEOP+ CROSSOVER POINT EXTENDED UPSTREAM END OF CABLE
tEOP-
tEOP+ CROSSOVER POINT EXTENDED
VSS A. DOWNSTREAM EOP DELAY B. UPSTREAM EOP DELAY
EOP DELAY tEOPD = tEOP- EOP DELAY RELATIVE TO tHDD tEOPDR = tEOPD - tHDD EOP SKEW tHESK = tEOP+ - tEOP- LOW SPEED TIMINGS ARE DETERMINED IN THE SAME WAY FOR: tLEOPD, tLEOPDR, AND tLHESK
SV00515
Figure 3. Hub EOP Delay and EOP Skew
1999 Jul 22
22
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
AC CHARACTERISTICS ( I2C pins)
All timing values are valid within the operating supply voltage and ambient temperature range and reference to VIL and VIH with an input voltage swing of VSS and VDD. SYMBOL fSCL tBUF tSU;STA tHD;STA tLOW tHIGH tr tf tSU;DAT tHD;DAT tVD;DAT tSU;STO Bus free time Start condition set-up time Start condition hold time SCL LOW time SCL HIGH time SCL and SDA rise time SCL and SDA fall time Data set-up time Data hold time SCL LOW to data out valid Stop condition set-up time I2C-bus 0.25 100 0 0.4 PARAMETER SCL clock frequency 0.5 0.25 0.25 0.45 0.45 0.3 0.1 TEST CONDITIONS MIN MAX 1000 UNIT kHz s s s s s s s ns ns s s
A detailed description of the specification, with applications, is given in the brochure "The be ordered using the Philips order number 9398 393 40011.
I 2C-bus
and how to use it". This brochure may
PROTOCOL
START CONDITION (S)
BIT 7 MSB (A7)
BIT 6 (A6)
BIT 0 LSB (R/W)
ACKNOWLEDGE (A)
STOP CONDITION (P)
tSU;STA
tLOW
tHIGH 1/fSCL
SCL
tBUF
tr
tf
SDA
tHD;STA
tSU;DAT
tHD;DAT
tVD:DAT
tSU;STO
SV00756
Figure 4.
I2C-bus
timing diagram
1999 Jul 22
23
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
SO32: plastic small outline package; 32 leads; body width 7.5mm
SOT287-1
1999 Jul 22
24
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
SDIP32: plastic shrink dual in-line package; 32 leads (400 mil)
SOT232-1
1999 Jul 22
25
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
SOLDERING Introduction
This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "Data Handbook IC26; Integrated Circuit Packages" (document order number 9398 652 90011). There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mount components are mixed on one printed circuit board. However, wave soldering is not always suitable for surface mount ICs, or for printed-circuit boards with high population densities. In these situations, reflow soldering is often used.
WAVE SOLDERING
Conventional single-wave soldering is not recommended for surface mount devices (SMDs) or printed-circuit boards with a high component density, as solder bridging and non-wetting can present major problems. To overcome these problems, the double-wave soldering method was specifically developed. If wave soldering is used, the following conditions must be observed for optimal results: with high upward pressure followed by a smooth laminar wave.
Through-hole mount packages SOLDERING BY DIPPING OR BY SOLDER WAVE
The maximum permissible temperature of the solder is 260C; solder at this temperature must not be in contact with the joints for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg(max)). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit.
* Use a double-wave soldering method comprising a turbulent wave * For packages with leads on two sides and a pitch (e):
- larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; - smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves at the downstream end. placed at a 45 angle to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves downstream and at the side corners. During placement, and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive has cured. Typical dwell time is 4 seconds at 250C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications.
* For packages with leads on four sides, the footprint must be
MANUAL SOLDERING
Apply the soldering iron (24 V or less) to the lead(s) of the package, either below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300C, it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400C, contact may be made for up to 5 seconds.
Surface mount packages REFLOW SOLDERING
Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. Several methods exist for reflowing; for example, infrared/convection heating in a conveyor-type oven. Throughput times (preheating, soldering and cooling) vary between 100 and 200 seconds, depending on heating method. Typical reflow peak temperatures range from 215 250C. The top-surface temperature of the packages should preferably be kept below 230C.
MANUAL SOLDERING
Fix the component by first soldering two diagonally-opposite end leads. Use a low-voltage (24 V or less) soldering iron applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320C.
1999 Jul 22
26
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
SUITABILITY OF IC PACKAGES FOR WAVE, REFLOW AND DIPPING SOLDERING METHODS
Soldering Method Mounting Mo nting Through-hole mount Package DBS, DIP, HDIP, SDIP, SIL BGA, SQFP, HLQFP, HSQFP, HSOP, SMS Surface mount PLCC, SO, SOJ LQFP, QFP, TQFP SSOP, TSSOP, VSO Wave suitable 2 not suitable not suitable 3 Reflow 1 - suitable suitable suitable suitable suitable Dipping suitable - - - - -
suitable not recommended 4, 5 not recommended 6
NOTES: 1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so-called "popcorn" effect). For details, refer to the Drypack information in the "Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods". 2. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board. 3. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink (at bottom version) cannot be achieved, and as solder may stick to the heatsink (on top version). 4. If wave soldering is considered, then the package must be placed at a 45 angle to the solder wave direction. The package footprint must incorporate solder thieves downstream and at the side corners. 5. Wave soldering is only suitable for LQFP, QFP, and TQFP packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm. 6. Wave soldering is only suitable for SSOP and TSSOP packages with a pith (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
1999 Jul 22
27
Philips Semiconductors
Product specification
Universal Serial Bus Hub
PDIUSBH11A
Purchase of Philips I2C components conveys a license under the Philips' I2C patent to use the components in the I2C system provided the system conforms to the I2C specifications defined by Philips. This specification can be ordered using the code 9398 393 40011.
Data sheet status
Data sheet status Objective specification Preliminary specification Product specification Product status Development Qualification Definition [1] This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product.
Production
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088-3409 Telephone 800-234-7381 (c) Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. Date of release: 07-99 Document order number: 9397-750-06218
Philips Semiconductors
1999 Jul 22 28

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