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GL811S

USB2.0 to ATA / ATAPI Bridge Controller

GENESYS LOGIC 

GL811S USB2.0 to ATA/ATAPI Bridge Controller

CHAPTER 1 GENERAL DESCRIPTION

The GL811S is a highly-compatible, low cost USB 2.0 to ATA / ATAPI bridge controller, which integrates

Genesys Logic own design high speed UTMI (USB 2.0 Transceiver Macrocell Interface) transceiver.

As a one-chip solution which complies with Universal Serial Bus specification rev. 2.0 and ATA / ATAPI-6

specification rev 1.0, the GL811S can support various kinds of ATA / ATAPI device. There are totally 4

endpoints in the GL811S controller, Control (0), Bulk In (1), Bulk Out (2), and Interrupt (3). By complies with

the USB Storage Class specification ver.1.0 (Bulk only protocol), the GL811S can support not only plug and

play but also Windows XP/ 2000/ ME default driver.

The GL811S uses 12MHz crystal and slew-rate controlled pads to reduce the EMI issue. With 48-pin LQFP

(7mmX7mm) package, the GL811S is the best cost/ performance solution to fit different situations in the USB

2.0 high speed storage class applications such as Hard Disk, CD-ROM, CD-R / RW and DVD-ROM.

©2007 Genesys Logic Inc. - All rights reserved.

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