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ST72344S2 데이터시트(PDF) 130 Page - STMicroelectronics

부품명 ST72344S2
상세설명  SCI asynchronous serial interface
PDF  247 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72344S2 데이터시트(HTML) 130 Page - STMicroelectronics

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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.
●
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:
●
An Idle Line prior to transmission or reception
●
A start bit
●
A data word (8 or 9 bits) least significant bit first
●
A Stop bit indicating that the frame is complete.
This interface uses two types of baud rate generator:
●
A conventional type for commonly-used baud rates,
●
An extended type with a prescaler offering a very wide range of baud rates, even with
non-standard oscillator frequencies.



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