GL800USB Просмотр технического описания (PDF) - Genesys Logic

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GL800USB

3.3 V, USB 2.0 UTMI compliant transceiver

Genesys Logic 

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.

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