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GL811USB

USB 2.0 to ATA / ATAPI Bridge Controller

Genesys Logic 

GL811USB – USB 2.0 to ATA / ATAPI Bridge Controller

1. General Description

The GL811USB 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 GL811USB can support various

kinds of ATA / ATAPI device. There are totally 4 endpoints in the GL811USB

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 GL811USB

can support not only plug and play but also Windows XP/ 2000/ ME default driver.

The GL811USB uses 12MHz crystal and slew-rate controlled pads to reduce the

EMI issue. With 48-pin LQFP (9mmX9mm) package, the GL811USB 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.

©2000-2002 Genesys Logic Inc.—All rights reserved.

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