GENERAL DESCRIPTION
The Macronixs Solid State Disk controller is fully integrated flash memory controller that provides all the control logic for a PC Card ATA flash memory. The MX9691A combines 1KB dual-port buffer and buffer manager, integrated MX93011 DSP core , and a complete host interface for both the PC Card ATA and ATA standard.

FEATURES
Host Interface
• Fully compatible with PCMCIA Release 2.1, and PC Card ATA Release 1.02 specification.
• Compatible with all PC Card Services and Socket Service.
• Fast ATA host-to-buffer burst transfer rates up to 20MB/sec. which support PIO mode 4(16.6MB/sec) and DMA mode 3(16.6MB/sec).
• Automatic sensing of PCMCIA or ATA host interface.
• Integrated PCMCIA attribute memory of 256 bytes (CIS).
    - CIS and Buffer RAM use same SRAM area to simplify internal bus design
• PCMCIA card configuration register support.
• Polarity control for host reset signal.
• PCMCIA twin card support.
• PCMCIA based ATA address decode support.
• Emulate the IBM task file for PC/AT.
• Separate status for Bus reset and Host program reset.
• Separate Host and Disk interrupt pins.

Flash Memory Interface
• Support all the control signals to execute read/write/erase operation for flash memory.
• Upto 32MB(unformatted) capacity for 16 pcs. 16Mbit flash memory or 64MB(unformatted) capacity for 16 pcs. 32Mbit flash memory.
• Flash Memory Power Down or write protect control support. - Dont power down the flash memory chip which used to store firmware
• Flash Memory Ready/Busy status detect.
• Inverted data bus control to reduce program operation in DOS FAT and ECC code field.
• Optional store firmware in flash memory array w/o externalROM. - Shadow ROM control to allow code fetch during data program or erase
• Media speed is upto 8MB/sec, sustain read data rate and 125KB/sec write data rate.

Buffer RAM control
• Dual port circular Buffer RAM control
• 1KB data Buffer RAM.
• Automatically correct error data in Buffer RAM.
   - Single word error correct and double word detect.
• Provide logic to speed up Buffer RAM access.
• Support 8 bit as well as 16 bit transfer on host bus.

DSP core
• High performance MX93011 DSP (21Mips) core.
• 4KB Internal RAM(direct access).
• 2KB Internal expansion RAM(indirect access) for store data or shadow ROM space.
• ICE debugging mode supported to ease system verification.
• Lower power and automatic power saving operation

Technology
• 128 pin LQFP
• 0.6um Low-power, High-speed CMOS technology.
• 5V±10% or 3.3V±5%

Utility Support
• Upload firmware from Host.
• Physical Devices test.
• Preformat.
• CIS Manufacturer code and Model code edit.