GL816 – USB 2.0 Flash Card Reader Controller

©2000-2001 Genesys Logic Inc.—All rights reserved.

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1. General Description

The GL816 is a highly integrated, flexible application USB 2.0 Multi-Interface

Flash Card Reader controller. It supports USB 2.0 high-speed transmission to

PCMCIA, CompactFlash

TM

(CF), Micro Drive, SmartMedia

TM

(SM), Secure Digital

TM

(SD), Multi Media Card

TM

(MMC), and MemoryStick

TM

(MS) interface on one

chip. Besides the flash card interface controller each, the GL816 integrates

Genesys Logic own design USB 2.0 high-speed UTMI (USB 2.0 Transceiver

Macrocell Interface) transceiver. As a single chip solution for USB 2.0 multi flash

card reader, the GL816 complies with Universal Serial Bus specification rev. 2.0,

USB Storage Class specification ver.1.0, and flash card interface specification

each.

The GL816 can support different kinds of multi-interface combinations. For the

best performance consideration, the GL816 integrates high efficiency card

interface hardware engine for data transfer, and the 48MHz feature-enhanced

8051 micro-controller. The GL816 also supports firmware upgrade via USB

interface, and external flash read/ write for firmware upgrade and other

applications. With the advanced mobile consideration in the IA application, the

GL816 can support Inter-Media transfer, it means that the data transfer between

different cards doesn’t need the support of USB host in PC system.

The GL816 equips dedicated power control pins for different cards and power /

busy indication. And the pin assignment design fits to card sockets to provide

easier PCB layout. With 8 additional GPIOs, and firmware controllable CD, CE

pins, the GL816 can be programmed to fit your various design in USB 2.0 high

speed multi-interface flash card reader applications.