USB 2.0 to ATA / ATAPI Bridge Controller

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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, theGL811E 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.

Symbol Description Min Max Unit
VCC DC supply voltage -0.3 +3.6 V
VI DC input voltage -0.3 VCC + 0.3 V
VI/O DC input voltage range for I/O -0.3 VCC + 0.3 V
VAI/O DC input voltage for USB D+/D- pins -0.3 VCC + 0.3 V
VI/OZ DC voltage applied to outputs in High Z state -0.3 VCC + 0.3 V
VESD Static discharge voltage 4000   V
TA Ambient Temperature 0 100
· Complies with Universal Serial Bus specification rev. 2.0.
· Complies with ATA/ATAPI-6 specification rev 1.0.
· Complies with USB Storage Class specification ver.1.0. (Bulk only protocol)
· Operating system supported: Win XP / 2000 / Me / 98 / 98SE; Mac OS 9.X / X.
· Integrated USB 2.0 Transceiver Macrocell Interface (UTMI) transceiver and Serial Interface Engine (SIE).
· USB 2.0 certified (TestID=40380268)
· Supports 4 endpoints: Control (0) / Bulk Read (1) / Bulk Write (2) / Interrupt (3).
· 64 / 512 bytes Data Payload for full / high speed Bulk Endpoint.
· Supports 16-bit Multiword DMA mode and Ultra DMA mode interface (Ultra 33 / 66).
· Embedded 7.5 MIPS RISC CPU.
· ROM size: 4k words; RAM size: 128 bytes.
· Supports Power Down mode and USB suspend indicator.
· Supports USB 2.0 TEST mode features.
· Supports 2 GPIO (GPIO5 & 6) for programmable AP (only for 64 pin package).
· Supports device power control for power on/off when running suspend mode (only for 64 pin package).
· Supports 32 bit and 48 bit LBA hard disk.
· Provides LED indicator for Full Speed and High Speed (only for 64 pin package).
· 12 MHz external clock to provide better EMI.
· 3.3V power input; 5V tolerance pad for IDE interface.
· Supports Wakeup ability.
· Available in 48-pin LQFP/TQFP and 64-pin LQFP/TQFP package.

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Size: 750.31KB
Page: 33
PDF: GL811E.pdf
  • Description:
    USB 2.0 to ATA / ATAPI Bridge Controller
  • MFG:



USB 2.0 to ATA / ATAPI
Bridge Controller

Revision 1.25
May. 03, 2006

Genesys Logic, Inc.

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