P912XDP512F0MPVR datasheet(477/1348 Pages) FREESCALE

477 / 1348 page

MC9S12XDP512 Data Sheet, Rev. 2.21

Freescale Semiconductor

477

Chapter 11

Serial Communication Interface (S12SCIV5)

11.1

Introduction

This block guide provides an overview of the serial communication interface (SCI) module.

The SCI allows asynchronous serial communications with peripheral devices and other CPUs.

11.1.1

Glossary

IR: InfraRed

IrDA: Infrared Design Associate

IRQ: Interrupt Request

LIN: Local Interconnect Network

LSB: Least Signiﬁcant Bit

MSB: Most Signiﬁcant Bit

NRZ: Non-Return-to-Zero

RZI: Return-to-Zero-Inverted

RXD: Receive Pin

SCI : Serial Communication Interface

TXD: Transmit Pin

11.1.2

Features

The SCI includes these distinctive features:

•

Full-duplex or single-wire operation

•

Standard mark/space non-return-to-zero (NRZ) format

•

Selectable IrDA 1.4 return-to-zero-inverted (RZI) format with programmable pulse widths

•

13-bit baud rate selection

•

Programmable 8-bit or 9-bit data format

•

Separately enabled transmitter and receiver

•

Programmable polarity for transmitter and receiver

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