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VV6411C036

DUAL-MODE DIGITAL CAMERA CO-PROCESSOR

STMicroelectronics 

STV0681

STV0681 Hardware Interfaces

4.3 USB interface

STV0681 includes a USB Version 1.1 compliant Universal Serial Bus Interface, including a

transceiver. This allows direct connection from STV0681 to a USB connector with minimal

additional hardware (that is a small number of passive discretes) - see Chapter 7

The USB interface interfaces the STV0681 to the USB at full speed 12MHz data rate. Some of the

features are:

q Compliant with USB protocol revision 1.1.

q USB protocol handling.

q USB device state handling.

q Clock and data recovery from USB.

q Bit stripping and bit stuffing functions.

q CRC5 checking, CRC16 generation and checking.

q Serial to parallel conversion.

q Single bulk-end point.

USB drivers are supplied by ST. For USB timing information, please refer to the USB specification

V1.1.

ADCS 7283313C

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