ST72345C4 datasheet(130/247 Pages) STMICROELECTRONICS

Nome de Peças	ST72345C4

Descrição Electrónicos	SCI asynchronous serial interface

PDF	247 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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130 / 247 page

On-chip peripherals

ST72344xx, ST2345xx

130/247

Doc ID 12321 Rev 6

peripherals that have shift registers (e.g. LCD drivers). The clock phase and polarity

are software programmable.

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TDO: Transmit Data Output. When the transmitter is disabled, the output pin returns to

its I/O port configuration. When the transmitter is enabled and nothing is to be

transmitted, the TDO pin is at high level.

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RDI: Receive Data Input is the serial data input. Oversampling techniques are used for

data recovery by discriminating between valid incoming data and noise.

Through these pins, serial data is transmitted and received as frames comprising:

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An Idle Line prior to transmission or reception

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A start bit

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A data word (8 or 9 bits) least significant bit first

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A Stop bit indicating that the frame is complete.

This interface uses two types of baud rate generator:

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A conventional type for commonly-used baud rates,

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An extended type with a prescaler offering a very wide range of baud rates, even with

non-standard oscillator frequencies.

ST72345C4 Folha de dados(PDF) 130 Page - STMicroelectronics