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Bluetooth Module
MBH7BT08
Data Sheet
Rev. 0.05e 20 October 2002
FUJITSU MEDIA DEVICES LIMITED
All specifications are preliminary which may be changed without any prior notice
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 -1-
1. Introduction This document applies to the Bluetooth Class 2 module MBH7BT08.
2. Features MBH7BT08 is a Power Class 2 module conforming to Bluetooth Specification Version 1.1. MBH7BT08 transmits and receives in the 2.4 GHz ISM band. Although upper layer protocol stack and Profiles have to be embedded on the user's host system when user uses conventional HCI module, MBH7BT08 includes upper layer protocol stack and several Profiles. Therefore, MBH7BT08 makes it possible to reduce the resources of the user's host system required to process for Bluetooth. MBH7BT08 has the following features: * Bluetooth Specification Version 1.1 Compliant * Built-in upper layer protcol stack (L2CAP, SDP, RFCOMM) * Built-in profiles (GAP, SDAP, SPP) * Transmit Power Class 2 (+4 dBm max.) * Hardware interface: UART interface (up to 921.6 kbps) * Software interface: Zerial interface (AT command-like) * 3.3 0.3 V Operation * Bluetooth Qualification Program approved (planned) * Microminiature: 19.5 x 13 x 2.2 mm * Surface mount type
3. Block Diagram
12MHz Crystal UART
32kHz Crystal
Zeevo Bluetooth Chip
Antenna Port
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 -2-
4. Electrical Characteristics 4-1. General Specification BluetoothTM Specification Version 1.1 Compliant Carrier Frequency Modulation 2400MHz ~ 2483.5MHz
0.5 BT Gaussian-filtered 2FSK at 1Msymbol/s Modulation index: 0.25 to 0.35 1Mbps 79ch 1MHz Power Class 2
Symbol Rate Channel Channel Space Transmit Power
4-2. Absolute Maximum Rating Items Supply Voltage Input Voltage Storage Temperature RF input power Symbol Vcc Vin Tstg Value +3.6 -0.3 ~ Vcc+0.3 -30 ~ +85 +15 Unit V V
C
dBm
4-3. Recommendable Operating Condition Items Supply Voltage Operating Temperature Symbol Vcc Topr Min 3.0 0 Typ 3.3 Max 3.6 +70 Unit V
C
4-4. I/O Terminal Characteristics Items Low-Level Input Voltage High-Level Input Voltage Low-Level Output Voltage High-Level Output Voltage Low-Level Output Current High-Level Output Current Symbol VIL VIH VOL VOH IOL IOH Min 2.0 2.4 Max 0.8 0.4 2.2 3.1 Unit V V V V Vcc=3.3V, Ta=25C Test Conditions Vcc=Vcc Min Vcc=Vcc Max Vcc=Vcc Min, IOL=100A Vcc=Vcc Min, IOH= -100A VOL=0.4V VOH=2.4V
mA mA
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 -3-
4-5. Power Consumption Mode Power during Inquiry / Page scan Power during Inquiry / Page Power during connection (DH5 TX followed by DH1 RX) Power during connection (DM3 TX followed by DH1 RX) Min Typ 1.5 20 55 50 Vcc=3.3V, Ta=25C Max Unit mA mA mA mA
4-6. Transmitter Specification*
1
Items RF transmit power RF power control range RF power range control resolution 20dB bandwidth for modulated carrier Initial Carrier Frequency Tolerance Carrier Frequency Drift
Condition Maximum output
Min -2 -75 -25 -40 -40 115 140 -
Typ 1 30 3 -
Vcc=3.3V, Ta=25C Max Unit 4 dBm dB dB 1 MHz +75 +25 +40 +40 175 -20 -40 -36 -30 -47 -47 kHz kHz kHz kHz kHz kHz dBm dBm dBm dBm dBm dBm
Modulation Characteristics
Adjacent Channel Power Out of Band Spurious Emissions
DH1 mode 1 Slot 3 Slot 5 Slot 8 bit sequence 01010101 8 bit sequence 00001111 (Avg) |M-N|=2 |M-N|>=3 30MHz --- 1GHz 1GHz --- 12.75GHz 1.8GHz --- 1.9GHz 5.15GHz --- 5.3GHz
4-7. Receiver Specification*
1
Items Sensitivity at 0.1% BER Sensitivity (single slot packets) Sensitivity (multi-slot packets) C/I performance Blocking performance Intermodulation Performance Maximum Input Level
Condition DH1 mode Input level = -70dBm DH1 mode Input level = -70dBm DH5 mode 30MHz ~ 12.75GHz Interferer signal th 5 order intermodulation Input level = -20dBm
Min -
Typ -75 -
Vcc=3.3V, Ta=25C Max Unit -70 dBm 0.1 % 0.1 0.1 0.1 0.1 0.1 % % % % %
*1) Measured according to the Bluetooth specification.
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 -4-
5. Pin Descriptions Name
GPIO3 GND ANT GND TXD RXD PCM_SYNC USB_DPCM_CLK RTS# CTS# USB_D+ PCM_IN PCM_OUT RESET# GPIO0 GPIO2 GPIO1
No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
I/O
I/O --I/O --O I O I/O O O I I/O I O I I/O I/O O
Description
General Purpose Input / Output Ground Antenna RF port (50) Ground UART data output UART data input PCM Synchronous data strobe (This function is not available.) USB D- data input/output (This function is not available.) PCM Synchronous data clock (This function is not available.) UART Ready To Send to DTE UART Clear To Send from DTE USB D+ data input/output (This function is not available.) PCM Synchronous data input (This function is not available.) PCM Synchronous data output (This function is not available.) Reset input: active low for 5 ms (It is required for firmware update.) General Purpose Input / Output General Purpose Input / Output CPU Activity (This terminal outputs high when the on-chip CPU is running and low when the device is in deep-sleep.) General Purpose Input / Output Baseband Activity (This terminal is high if there is any baseband activity.) General Purpose Input / Output General Purpose Input / Output Ground DC power (3.3V) Ground Ground
External connection
NC Ground Antenna (50) Ground UART RxD UART TxD NC NC NC UART CTS# UART RTS# NC NC NC Reset output or NC NC NC Monitor input or NC
GPIO5 GPIO4 GPIO6 GPIO7 GND VCC GND GND
19 20 21 22 23 24 25 26
I/O O I/O I/O ---------
NC Monitor input or NC NC NC Ground DC Power Ground Ground
24
13
25
26
1
12
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 -5-
6. Interface Descriptions
Host
Zerial over UART
MBH7BT08
MBH7BT08 supports UART connection to its host. Also, MBH7BT08 supports the Zerial interface over UART. The Zerial interface is Zeevo's proprietary interface and supports AT-like modem commands.
6-1. Host Connection MBH7BT08 Universal Asynchronous Receiver Transmitter (UART) interface provides a simple mechanism for communicating with the host. The UART is compatible with the 16450 industry standard. HOST UART Interface TXD RXD RTS# CTS# Figure 6-1: UART Interface Four signals are used to implement the UART function, as illustrated above. When MBH7BT08 is connected to the host, UART_RX and UART_TX transfer data between both devices. The remaining two signals, UART_CTS and UART_RTS, can be used to implement hardware flow control. If CTS is de-asserted, MBH7BT08 stops transmitting data within one byte. When MBH7BT08 de-asserts RTS, by default it can accept up to 22 more bytes (i.e., the host is expected to stop transmitting within 22 bytes). All UART connections are implemented using CMOS technology and have signaling levels of 0V and Vcc (+3.3V nominal). TXD RXD RTS# CTS# MBH7BT08
RTS# RXD 0ns 4 Bytes max.
CTS# TXD 82ns 1 Byte max.
Figure 6-2: UART Timing Diagram
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 -6-
UART settings, such as baud rate and packet format, are following. The default baud rate can be configured using firmware setting software. Table 6-1: UART settings Possible Values 2.4k, 4.8k, 9.6k, 19.2k, 38.4k, 57.6k, 115.2k, 230.4k, 460.8k, 921.6k bps (The default baud rate is 115.2 kbps.) 8 bits None 1 bit Hardware flow control (RTS/CTS)
Parameter Baud Rate Data bits Parity Number of Stop bits Flow Control
6-2. Software Interface
Application
Host
Zerial Interface
Profiles (GAP, SDAP, SPP) RFCOMM L2CAP Link Manager Baseband Radio SDP MBH7BT08
All components of the upper layer stack, lower layer stack and profiles (GAP, SDAP, SPP) are incorporated on MBH7BT08. The Zerial interface can be used for software interface between the host and MBH7BT08. The Zerial interface is Zeevo's proprietary interface. A user can use simple AT-like modem command set to run Bluetooth. *GAP: Generic Access Profile SDAP: Service Discovery Application Profile SPP: Serial Port Profile
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 -7-
6-2-1. Zerial Interface The software behavior of the Zerial interface is similar to a Hayes-compatible modem. The Zerial interface has two modes, a command mode and a bypass mode. In the command mode, the host can issue specially formatted text strings called commands. These command strings can be used for configuration or to manage a connection with a remote device. Note that the Zerial interface does not support the standard Hayes AT command set. Instead, it has commands that leverage off the vendor-specific command form. Once a connection is established, the Zerial interface transitions to the bypass mode. In the bypass mode, All data sent from the host will be sent over the Bluetooth link to the remote device with the exception of the Escape sequence. Any data received from the remote device will be delivered to the host. To move Zerial interface out of bypass mode and into the command mode, the Escape sequence is used. While in the bypass mode, the Zerial interface will search for this Escape sequence from the host. If this sequence is found, the Zerial interface will go back to command mode. This allows commands to be issued again from the host, but the connection to the remote device will remain. Any data received on the Bluetooth link will be discarded while in command mode. While in the command mode, the Zerial interface will send responses back to the host for commands received. Responses from the Zerial interface will also be sent on system reset. These responses are not sent to the host during bypass mode. However, it is possible to configure a disconnect notification to be sent during bypass mode. The remote device must at minimum be a device that supports the Serial Port Profile (SPP). The Zerial interface can be used three different ways. (1) Initiate connections (2) Cable replacement (3) Standalone cable replacement The first type of device will use the Zerial interface to initiate connections. Within this configuration, the Zerial interface can be used, through the command set, to discover other Bluetooth devices, initiate bonding with a remote device, and initiate a connection with a remote device. The Zerial interface currently only supports point-to-point SPP connections. Commands are issued through the host such as a PC or a second microprocessor. The second type of device will use the Zerial interface to attach to a remote device acting as a cable replacement. The attached Zerial interface will accept connections initiated from a remote Bluetooth device and transfer data to/from the attached device over UART. It can also respond to a request from a remote device to bond. Since the Zerial interface setup occurs over UART, this configuration requires an additional controller. The last configuration is similar to the second configuration with the difference being the Zerial interface operates entirely standalone. In this configuration, an external setup (through commands) is not normally available.
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 -8-
(1) Commands All commands are formatted as follows. AT+ZV Command [parameter] [parameter] Where Command is replaced by the actual command name listed in Table 6-2. Any text following the command (and separated by spaces) is considered to be a parameter. All commands must terminate in a line-feed, carriage return, or both. Tab characters, carriage returns, cannot separate parameters or line feeds. Parameters are shown in square brackets "[ ]". The number of parameters and their values depend upon the command. Numeric parameters are given in hexadecimal, except where noted. Table 6-2: Commands Response(s) Summary BondPending [BD addr] Change the UART baud rate BondOk [BD addr] -BypassModeSet the CoD to use ConnectionDown Baudrate Changed Disable bonding on the device CoDOk Initiate a device discovery BondDisabled Enable bonding on the device InqPending Set the local name of the device InqDone [num] Device [BD addr] [name] [service name] BondEnabled Set the profile to use BondPending [BD addr] BondOk [BD addr] BondDisabled LocalNameOk Reset the device ProfileOk Set the security level to use ResetPending Initiate a connection with the specified device SecurityOk Disconnect from the remote device ConnectionUp Request the interface version number ConnectionDown ConnectionDown Change the UART baud rate ZerialVer Set the CoD to use
Command Name Bond [BD addr] [PIN] Bypass ChangeBaud [rate] CoD [major] [minor] DisableBond Discovery [CoD] [profile]
EnableBond [PIN] [BD addr] [timeout]
LocalName [Name] Profile [profile] Reset Security [level] SPPConnect [BD addr] SPPDisconnect Version (2) Escape sequence
Once a connection has been established between host and remote device, the host can put the Zerial interface back into command mode. Once the Zerial interface is back in command mode, new commands (including termination of connection) can be issued. To move the Zerial interface out of bypass mode and into the command mode, the Escape sequence is used. The Escape sequence is the string "^#^$^%" followed by 2 seconds of no data. It must mot be followed by a line-feed or carriage return. The Bluetooth connection to a remote device is not affected. If the Escape sequence is received and no connection is active, the Zerial interface will immediately respond with AT-ZV -CommandModeWhen the Escape Sequence is received while a connection is still active and there is no data for 2 seconds, the Zerial interface will respond (after those 2 seconds of no data) with the same string. The Zerial interface will now be in command mode.
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 -9-
(3) Responses All responses will be in the following format. AT-ZV Response [parameter] [parameter] Where Response is replaced by the actual response string listed in Table 6-3. Anything in square brackets, "[ ]", are parameters that depend upon the command. Numeric parameters will be returned in hexadecimal, except where noted. Table 6-3: Responses Associated Command Summary (none) A remote disconnect has occurred while in the bypass mode. (none) The Zerial interface is currently in bypass mode. ^#^$^% The Zerial interface is currently in the (Startup) command mode. (Remote disconnect) ChangeBaud The baud rate change request has been accepted. (Startup) The BD address of the local device. DisableBond Bonding with a new device has been disabled. EnableBond EnableBond Bonding has been successfully enabled. Bond A bonding attempt has been unsuccessful. EnableBond Bond Bonding has been successfully completed. EnableBond Bond Bonding is in progress. EnableBond CoD The class of device has been successfully changed. SPPConnect The connection with the remote device has SPPDisconnect terminated. (Remote disconnect) SPPConnect The connection with a remote device has been successful. Discovery The results for one device during device inquiry, name request, and service search. Discovery A device inquiry has been completed, and [num] devices have been found. Discovery LocalName Profile Reset Security Version A device inquiry has been initiated. The local device name has been successfully changed. The profile of the listening server has been successfully changed. The reset command has been accepted and the reset is about to occur. The security level has been successfully changed. The version of the Zerial interface command set.
Response ###NO CARRIER -BypassMode-CommandMode-
Baudrate Changed BDAddress [BD addr] BondDisabled BondEnabled BondFail BondOk [BD addr] BondPending [BD addr] CoDOk ConnectionDown
ConnectionUp Device [BD addr] [name] [service name] InqDone [num] InqPending LocalNameOk ProfileOk ResetPending SecurityOk ZerialVer [ver]
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 - 10 -
(4) Error All error reporting will be in the following format. AT-ZV Error Where Error is replaced by the actual error string listed in Table 6-4. Error reporting will provide information to the user to help describe the error that occurred. Table 6-4: Error Reporting Error string ErrConnect ErrExecution ErrFormat ErrInvalidParam ErrNumParam ErrUnknownCmd (5) Responses after the reset Upon either hardware reset or software reset (such as the Reset command), the Zerial interface will respond as follows after the reset is complete. AT-ZV -CommandModeAT-ZV BDAddress [BD addr] Because the BD address of the local device is reported during this response, the response is different than a response to the Escape Sequence. Summary Command cannot be used while valid connection is up An error occurred in trying to execute the command Command issued that does not start with "AT+ZV" One of the parameters is incorrect (could be invalid range or unrecognized symbolic name) Too few parameters given Unrecognized command
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 - 11 -
7. Mechanical Characteristics 7-1. Appearance and Dimensions
Unit: mm
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 - 12 -
7-2. Module Footprint (reference)
Unit: mm
Copyright (c) FUJITSU MEDIA DEVICES LIMITED 2002 - 13 -

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