Genesys Logic, Inc.
GL800USB -
USB2.0 UTMI Compliant Transceiver
Specification 1.2
August 20, 2002
Genesys Logic, Inc.
10F, No.11, Ln.3, Tsao Ti Wei, Shenkeng, Taipei, Taiwan
Tel: 886-2-2664-6655 Fax: 886-2-2664-5757
http://www.genesyslogic.com
GL800USB - USB2.0 UTMI COMPLIANT TRANSCEIVER
Contents
1. General Description ......................................................................................... 3
2. Features ............................................................................................................ 4
3. System Configuration...................................................................................... 5
3.1 System Diagram ........................................................................................... 5
3.2 System Description....................................................................................... 5
4. Function Block ................................................................................................. 6
4.1 Block Diagram .............................................................................................. 6
4.2 Functional Overview ..................................................................................... 7
5. Pinning Information ......................................................................................... 9
5.1 Pin Assignment............................................................................................. 9
5.2 Pin Description ........................................................................................... 10
6. Functional Description .................................................................................. 14
6.1 Transmit Operation ..................................................................................... 14
6.2 Receive Operation...................................................................................... 15
7. Electrical Characteristics .............................................................................. 18
7.1 Absolute Maximum Ratings ........................................................................ 18
7.2 DC Characteristics (Digital Pins) ................................................................ 18
7.3 DC Characteristics (D+/D-)......................................................................... 19
7.4 Switching Characteristics ........................................................................... 20
7.5 Operating & Suspend Current .................................................................... 20
7.6 Timing Chart ............................................................................................... 21
8. Package Dimension ....................................................................................... 23
9. Revision History............................................................................................. 24
2000-2001 Genesys Logic Inc.--All rights reserved.
Page 2 of 2
GL800USB - USB2.0 UTMI COMPLIANT TRANSCEIVER
1. General Description
GL800USB is a high performance USB 2.0 Transceiver compliant with the UTMI (USB
2.0 Transceiver Macrocell Interface) Specification proposed by Intel. The UTMI
specification defines a standard interface to USB 2.0 high-speed transceivers that
enables common design across prototype and production implementations.
The GL800USB integrates high-speed, mixed-signal circuitry to serve as the interface
between the high performance USB serial bus and the 16-bit SIE bus. The transceiver is
controlled by input signals from the SIE bus, which is synchronized with the 30MHz clock
output. The UTMI transceiver handles the low level USB protocol and signaling. This
includes features such as: data serialization and deserialization, bit stuffing and clock
recovery and synchronization. The primary focus of the UTMI transceiver is to shift the
clock domain of the data from the USB 2.0 rate to one that is compatible with the general
logic.
To eliminate the difficult high-speed, mixed-signal USB 2.0 logic design for system and
peripheral developers, the GL800USB with standard UTMI and 40X improvement in data
rate can be easily adapted for implementation of USB 2.0 high speed compliant design of
widely applications, including scanners, printers, portable storage, external CD-ROM /
CD-RW / DVD-ROM, flash card readers, and PC cameras.
2000-2001 Genesys Logic Inc.--All rights reserved.
Page 3 of 3
GL800USB - USB2.0 UTMI COMPLIANT TRANSCEIVER
2. Features
Complies with Universal Serial Bus Specification Rev. 2.0.
Complies with USB 2.0 Transceiver Macrocell Interface (UTMI) Specification.
Supports 480 Mbit/s "High Speed" (HS) / 12 Mbit/s "Full Speed" (FS), FS Only
serial data transmission rates.
16 bit Bi-directional Serial Interface Engine (SIE) bus
SYNC/EOP generation and checking
Supports "Chirp" for High Speed recognition
Data and clock recovery from serial stream on the USB
Bit-stuffing / unstuffing; Bit stuff error detection
Holding registers to stage transmit and receive data
Supports Reset and Suspend
Supports USB 2.0 Test Mode
Single parallel data clock output with on-chip PLL to generate higher speed
serial data clocks
Available in 48 pin LQFP package (7 mm * 7mm)
2000-2001 Genesys Logic Inc.--All rights reserved.
Page 4 of 4
GL800USB - USB2.0 UTMI COMPLIANT TRANSCEIVER
3. System Configuration
3.1 System Diagram
GL800USB
SIE
(Serial Interface
Engine)
Device
Specific Logic
UTMI
USB 2.0 Transceiver Macrocell interface
USB 2.0
3.2 System Description
3.2.1 GL800USB
The USB 2.0 UTMI Transceiver, which handles the low level USB protocol and
signaling, and shifts the clock domain of the data from the USB 2.0 rate to one that
is compatible with the general logic.
3.2.2 Serial Interface Engine
The Serial Interface Engine can be further sub-divided into 2 types of sub-blocks;
the SIE control logic and the Endpoint logic. The SIE control logic contains the
USB PID and address recognition logic, and other sequencing and state machine
logic to handle USB packets and transactions. The Endpoint logic contains the
endpoint specific logic: endpoint number recognition, FIFOs and FIFO control, etc.
SIE logic module can be developed by peripheral vendors or purchased from IP
vendors. The standardization of the UTMI allows multiple sources of SIE logic to
connect with GL800USB to implement the USB 2.0 High-Speed design.
3.2.3 Device Specific Logic
This block is the glue that ties the USB interface to the specific application of the
device.
2000-2001 Genesys Logic Inc.--All rights reserved.
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