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Intel(R) StrongARM* SA-1111 Microprocessor Companion Chip
Brief Datasheet
Product Features
The Intel(R) StrongARM* SA-1111 Microprocessor Companion Chip (SA-1111), when coupled with the Intel(R) StrongARM* SA-1110 Microprocessor (SA-1110), adds a variety of functions for use in highperformance handheld computer systems. This companion chip brings a new level of integration to small systems and enables complete systems to be built with greatly reduced chip count, low power, and high performance.
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PLL clock generator --3.6863-MHz clock generated by the StrongARM* processor Three modes of operation --Normal --Doze --Sleep System Bus Interface (SBI) --Shared Memory Controller (SMC) --Register Access Bus (RAB) --DMA Bus AC-Link/I2S Serial Port for Audio that supports: --AC'97 codecs that are compliant with AC-Link standard 1.03 -- I2S-format codecs PCMCIA and Compact Flash (CF) Interface -- Two sockets (one for PCMCIA and one for CF) -- Full card-detection and PCMCIA voltage control supporting 3.3-V and 5-V PCMCIA cards --Full on-chip buffering so no external devices are required
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USB Host Controller -- USB-Rev 1.1 compatible -- Supports 1.5 Mbits/s and 12 Mbits/s speeds of operation Two PS/2 ports for use with keyboards, mice, trackpads, or other PS/2-compliant devices
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SSP* Serial Data Port -- Supports National Microwire protocol, TI Synchronous Serial Protocol (SSP), and Motorola Serial Peripheral Interface (SPI)* protocol Two Pulse-Width-Modulated (PWM) outputs -- 8-bit digital-to-analog (D-to-A) converters 256 mini-ball grid array (mBGA)
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Order Number: 278243-002 May 2000
Description
The SA-1111 is an integrated circuit incorporating a Universal Serial Bus (USB) controller, two PS/2 ports (mouse and trackpad), a PCMCIA and Compact Flash (CF) interface, AC-Link/I2S serial audio port, two pulse-width-modulated (PWM) outputs, and a versatile serial port. These functional blocks are connected via a fast internal synchronous bus. The System Bus Interface (SBI) connects the internal bus to the SA-1111's memory/system bus and transfers all data and control information between the SA-1111 and the SA-1110 system processor.
Information in this document is provided in connection with Intel(R) products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel's Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice. Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order. Copies of documents which have an ordering number and are referenced in this document, or other Intel literature may be obtained by calling 1-800548-4725 or by visiting Intel's website at http://www.intel.com. Copyright (c) Intel Corporation, 2000 *Third-party brands and names are the property of their respective owners.
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SA-1111 Brief Datasheet
SA-1111
Intel(R) StrongARM* SA-1111 Architecture
Figure 1 shows the functional blocks of the SA-1111. Figure 1. SA-1111 Block Diagram
Slot 0 ADDR Slot 1 ADDR Slot 0 CNTL Slot 1 CNTL
Slot 0 Data
PCMCIA CNTRL
PCMCIA Logic
ADDR Buffers
Data Buffers PS/2 Control PWM Control PS/2 Mouse PS/2 Trackpad LCD Contrast LCD Brightness
Intel(R) StrongARM* SA-1110 System Bus
Address <25:0> Data <31:0> nCS RDY nOE nWE nCAS/DQM <3:0> nSDCS nSDRAS nSDCAS SDCLK Shared Memory Controller (SMC) System Bus
Intel
StrongARM SA-1110 Interface
Interrupt Controller
Slot 1 Data
USB Host Controller
USB
AC-link Serial Port SSP Serial Port
AC '97 Codec
SPI MicroWire SSP
* Other brands and names are the property of their respective owners.
A6257-02
Universal Serial Bus (USB) Host Controller
The USB Host Controller is Open HCI-compatible, Windows95* USBD-compatible, and USBRev 1.1 compatible. It supports both low- (1.5 Mbits/s) and high-speed (12 Mbits/s) USB devices. The USB controls the transfer of data between USB peripherals (attached to the USB) and system memory. The USB uses DMA to transfer data.
PS/2 Ports
The two PS/2 ports can be used with keyboards, mice, trackpads or other PS/2-compliant devices. The PS/2 pins behave like open-drain I/Os when used in PS/2 mode. When not used for PS/2 attachment, the pins may be used as General-Purpose Input/Output (GPIO).
SA-1111 Brief Datasheet
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SA-1111
PCMCIA and Compact Flash Interface
The PCMCIA and Compact Flash (CF) Interface drives all signals for two sockets (one for PCMCIA and one for CF), without external buffering. The I/O buffers can drive signals at 3.3 V and 5.0 V, or they can be turned off. The control logic and built-in buffers eliminate numerous external "glue" and buffer/transceiver components, providing a highly integrated and low-power solution for the creation of complete systems.
Pulse-Width-Modulated (PWM) Interface
Two PWM outputs provide brightness and contrast control suitable for an LCD display. These function as 8-bit digital-to-analog (D-to-A) converters, with the addition of inexpensive external filter components. When not used for PWM output, the pins may be used for GPIO.
AC-Link/I2S Serial Port for Audio
The full-duplex serial port for audio transfers serialized audio data to and from external devices using AC-Link, I2S or "MSB-Justified" formats. The AC-Link fully supports AC'97 codec that are compliant with AC-Link standard 1.03--some features added to later revision AC'97 codecs may not be supported. For AC'97 codecs, digitized audio can pass in both directions simultaneously using sample sizes up to 16 bits. For AC'97 codecs, the playback or audio out (SA-1111 to codec) is fixed at 48 KHz. Variable-rate sampling for playback, which is not defined in AC-Link standard 1.03, is not supported in hardware. The serial audio port supports variable sample rates for incoming audio (codec to SA-1111). Codecs compliant with AC-Link standard 1.03 or later can select the incoming audio sample rate by software control. The audio serial port also supports I2S or "MSB-Justified" mode requirements. Sample rates for I2S may be 8, 11.025, 16, 22.05, 32, or 44.1 KHz.
SSP* Serial Data Port
A full-duplex synchronous serial interface provides attachment to modem, telecom, and other devices using serial protocols for data transfer. It supports National Microwire*, TI Synchronous Serial Protocol (SSP)*, and Motorola Serial Peripheral Interface (SPI)* serial protocols. The SSP Serial Data Port data FIFOs can be accessed by system-initiated transfers that use SRAM-like block data moves by the system processor.
System Bus Interface
The SBI is the primary interface between the SA-1111 and the SA-1110 processor. Its connection to the full SA-1110 system memory bus is used for transferring data between the host processor and the SA-1111 internal functional blocks. The SBI is used for three types of transfer:
* Register READs and WRITEs
SRAM-like single word transfers, initiated by the SA-1110 system processor.
* Block-data READs and WRITEs
SRAM-like bursts across the system bus, initiated by the SA-1110 system processor. Blockdata transfers are used to fill or empty SRAM buffers serving the serial-port subsystems.
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SA-1111 Brief Datasheet
SA-1111
* DMA to System Memory
The Shared Memory Controller (SMC) performs DMA transfers in response to requests from the USB Host Controller or the AC-Link/I2S serial audio port.
Shared Memory Controller
The SMC is a sub-unit of the SBI and responds to data transfer requests from the USB Host Controller, or the AC-Link/I2S serial port for audio. The SMC translates these data read or write cycles into DRAM cycles, supporting up to 128 Mbytes of EDO DRAM or SDRAM, with peak bandwidth of 192 Mbytes/s.
System Overview
The SA-1111 provides a variety of I/O functions that enable complete systems to be built with very little "glue" logic. Figure 2 shows how the SA-1111 can be used with the SA-1110 in a handheld computing device. The external display controller/graphics accelerator is optional, for higher performance with an LCD display, or to enable simultaneous display to a video monitor. For power parameters and physical characteristics, see the SA-1111 Linecard on Intel's website for developers.
SA-1111 Brief Datasheet
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SA-1111
Figure 2. System Block Diagram
LCD Header LCD CPLD data LCD analog support formater for Sharp 3.9" for Sharp 3.9" UCB1300 POTS Codec RS232 IrDA USB stv UDA1341 I2S 16 Bit Stereo Codec
Intel StrongARM SA-1110
Intel(R) StrongARM* SA-1110 CPU Board
Buffer
Graphics Header 32 SMT LEDs
16Mx16 SDRAM
Xceiver
Expansion Header
16Mx16 SDRAM
8Mx16 Intel Page Mode Strata Flash
Xceiver
Power Manager
Batt e Batt ry ery
Address Decode Bus Contrl. CPLD Header RS232 9 Pin RS232
Max 3243
Intel(R) StrongARM* SA-1111 Board
Buffer Test Pods Address 9:0 8Mx16 Intel Page Mode Strata Flash Socket Address 5:2
Address 25:0 Expansion Header
D15:0
Intel StrongARM SA-1111
D15:0
16Mx16 SDRAM
D15:0
Xceiver
Test Pods
D15:0
SMC 91C96 Enet
D7:0
CPLD Debug Registers Lights Switches
D31:0
D31:0
16Mx16 SDRAM
D31:0
Xceiver
8Mx16 Intel Page Mode Strata Flash Socket
Test Pods
10B T
4x5 Key Pad Header
PCMCIA Slot 1 Slot 2
UDA1341 I2S 16-Bit Stereo Codec
AC97 Codec PS/2a
SSP
PWM-a PWM-b
USB Host
8 Switch Pack
3.5mm Jacks
PS/2b
USAR SPI Key Coder
Matrix Keyboard Headers
* Other brands and names are the property of their respective owners.
A6881-01
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SA-1111 Brief Datasheet
CF Type II Slot
8Mx16 Intel Page Mode Strata Flash
PAL

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