GL811E USB 2.0 to ATA/ATAPI Bridge Controller

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

Page 7

CHAPTER 1

GENERAL DESCRIPTION

The GL811E 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 GL811E can support various kinds of ATA / ATAPI device. There are totally 4

endpoints in the GL811E 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 GL811E can support not only plug and

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

The GL811E uses 12MHz crystal and slew-rate controlled pads to reduce the EMI issue. With 48-pin LQFP

(9mmX9mm) package, the GL811E 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.