GL422/GL423 USB 2.0 +SD/MMC-controller Combo Solution

©2000-2006 Genesys Logic Inc. - All rights reserved.

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CHAPTER 3

PIN ASSIGNMENT

3.1 Function description

3.1.1 USB specification compliance

• Confirms to USB 480Mbps Specification, version 2.0.

• Backward compatible with USB 12Mbps Specification, version 1.1.

• Support one USB device address and up to 5 endpoints, including one control, one interrupt and 2

bulk IN / OUT endpoint pairs

3.1.2 Integrated USB building blocks

• USB2.0 transceiver macro (UTM), Serial Interface Engine (SIE), Build-in power-on reset (POR) and

low-voltage detector (LVD)

3.1.3 Embedded 8051 micro-controller

• Operates at 60 MHz clock, 12 clocks per instruction cycle

• Embedded 48K Byte mask ROM and internal 256 byte SRAM

• Embedded 4K Byte external SRAM

3.1.4 3.3V power source

3.1.5 Memory Stick TM interface

• Compliant with Memory Stick interface specification

• Hardware support BS/SDIO/SCLK signals

• Support INS signal

• Support automatic CRC16 generation and verification

3.1.6 Secure Digital (SD) and Multi Media Card (MMC)

• Compliant with Secure Digital / MMC interface specification

• Support both SD / MMC mode access CLK/CMD/DAT0/DAT1/DAT2/DAT3

• Command transmit and response receive can be enabled separately

• Automatic CRC7 generation for command and CRC7 verification for response on CMD

• Support automatic CRC16 generation and verification on DAT3-0

• In addition to full packet transaction, optional single byte / bit operation on both CMD and DAT line

/ lines

• Process data in block or byte