ST72361AR4-Auto datasheet(156/279 Pages) STMICROELECTRONICS

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LINSCI serial communication interface (LIN master/slave)

ST72361xx-Auto

156/279

Doc ID 12468 Rev 3

LINSCI serial communication interface (LIN

master/slave)

15.1

Introduction

The Serial Communications Interface (SCI) offers a flexible means of full-duplex data

exchange with external equipment requiring an industry standard NRZ asynchronous serial

data format. The SCI offers a very wide range of baud rates using two baud rate generator

systems.

The LIN-dedicated features support the LIN (Local Interconnect Network) protocol for both

master and slave nodes.

This chapter is divided into SCI Mode and LIN mode sections. For information on general

SCI communications, refer to the SCI mode section. For LIN applications, refer to both the

SCI mode and LIN mode sections.

15.2

SCI features

●

Full duplex, asynchronous communications

●

NRZ standard format (Mark/Space)

●

Independently programmable transmit and receive baud rates up to 500K baud.

●

Programmable data word length (8 or 9 bits)

●

Receive buffer full, Transmit buffer empty and End of Transmission flags

●

2 receiver wake-up modes:

–

Address bit (MSB)

–

Idle line

●

Muting function for multiprocessor configurations

●

Separate enable bits for Transmitter and Receiver

●

Overrun, Noise and Frame error detection

●

6 interrupt sources

–

Transmit data register empty

–

Transmission complete

–

Receive data register full

–

Idle line received

–

Overrun error

–

Parity interrupt

●

Parity control:

–

Transmits parity bit

–

Checks parity of received data byte

●

Reduced power consumption mode

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