Genesys Logic, Inc.
GL811USB -
USB 2.0 to ATA / ATAPI Bridge
Controller
Specification 1.3
May 10, 2002
Genesys Logic, Inc.
10F, No.11, Ln.155, Sec.3, Peishen Rd., Shenkeng, Taipei, Taiwan
Tel: 886-2-2664-6655 Fax: 886-2-2664-5757
http://www.genesyslogic.com
GL811USB – USB 2.0 to ATA / ATAPI Bridge Controller
Contents
1. General Description ......................................................................................... 2
2. Features ............................................................................................................ 3
3. Function Block ................................................................................................. 4
3.1 Block Diagram .............................................................................................. 4
3.2 Functional Overview ..................................................................................... 5
4. Pinning Information ......................................................................................... 7
4.1 Pin Assignment............................................................................................. 7
4.2 Pin Description ............................................................................................. 8
5. Functional Description .................................................................................. 10
5.1 ATA/ ATAPI ................................................................................................. 10
5.2 USB 2.0 ...................................................................................................... 10
6. Electrical Characteristics .............................................................................. 11
6.1 Absolute Maximum Ratings ........................................................................ 11
6.2 Temperature Conditions ............................................................................. 11
6.3 DC Characteristics...................................................................................... 11
6.4 AC Characteristics- ATA/ ATAPI.................................................................. 13
6.5 AC Characteristics- USB 2.0 ...................................................................... 33
7. Package Dimension ....................................................................................... 34
8. Revision History............................................................................................. 35
©2000-2002 Genesys Logic Inc.—All rights reserved.
Page 1
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.
Page 2
GL811USB – USB 2.0 to ATA / ATAPI Bridge Controller
2. Features
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.
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 8-bit/16-bit Standard PIO mode interface.
Supports 16-bit Multiword DMA mode and Ultra DMA mode interface (Ultra 33
/ 66 / 100).
Embedded USB 2.0 UTMI transceiver.
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.
12MHz external clock to provide better EMI3.3V power input.
5V tolerance pad for IDE interface.
Supports Wakeup ability.
Available in 48-pin LQFP (9 mm * 9mm) package.
©2000-2002 Genesys Logic Inc.—All rights reserved.
Page 3
GL811USB – USB 2.0 to ATA / ATAPI Bridge Controller
3. Function Block
3.1 Block Diagram
DMACK_
DIOR_
DIOW_
CS1_,
CS0_
DA2
DA1
DA0
IODD15-0
INTRQ
CBLID_
DMARQ
IORDY
CLK15
GPIO1
CPU
Control Register
GPIO7
RPU
8
CONTROL FIFO
CLK30
DPF
8/16-Bit
IDE
4
TXFIFO0
RXSTS
DPH
SIE
TXFIFO1
TXCTL
UTMI
USB2.0
DMF
DMH
Engine
LOGIC TXCVR
16
RXFIFO0
12-96MHz
RXFIFO1
DATA
RREF
X10
Clkgen
12MHz
X40
©2000-2002 Genesys Logic Inc.—All rights reserved.
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