ST72344S2 datasheet(130/247 Pages) STMICROELECTRONICS

tên linh kiện	ST72344S2

Giải thích chi tiết về linh kiện	SCI asynchronous serial interface

PDF	247 Pages

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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.

●

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.

ST72344S2 bảng dữ liệu(PDF) 130 Page - STMicroelectronics