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
2000-2002 Genesys Logic Inc.--All rights reserved.
Page 1
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
GL811USB USB 2.0 to ATA / ATAPI Bridge Controller
2000-2002 Genesys Logic Inc.--All rights reserved.
Page 2
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.
GL811USB USB 2.0 to ATA / ATAPI Bridge Controller
2000-2002 Genesys Logic Inc.--All rights reserved.
Page 3
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.
GL811USB USB 2.0 to ATA / ATAPI Bridge Controller
2000-2002 Genesys Logic Inc.--All rights reserved.
Page 4
3. Function Block
3.1 Block Diagram
CPU
CONTROL FIFO
RXFIFO1
SIE
Control Register
UTMI
LOGIC
USB2.0
TXCVR
Clkgen
TXFIFO0
TXFIFO1
CLK30
RXSTS
TXCTL
DATA
16
CLK15
8
RPU
DPF
DPH
DMH
DMF
RREF
IODD15-0
DMACK_
DIOR_
DIOW_
CS1_,
CS0_
DA2
DA1
DA0
12MHz
4
INTRQ
CBLID_
DMARQ
IORDY
X40
X10
RXFIFO0
GPIO1
GPIO7
8/16-Bit
IDE
Engine
12-96MHz
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