HD6432142 datasheet(467/1177 Pages) RENESAS

467 / 1177 page

Section 15 Serial Communication Interface (SCI, IrDA)

Rev. 4.00 Sep 27, 2006 page 423 of 1130

REJ09B0327-0400

Section 15 Serial Communication Interface (SCI, IrDA)

15.1

Overview

This LSI are equipped with a 3-channel serial communication interface (SCI). The SCI can handle

both asynchronous and clocked synchronous serial communication. A function is also provided for

serial communication between processors (multiprocessor communication function).

One of the three SCI channels can transmit and receive IrDA communication waveforms based on

IrDA specification version 1.0.

15.1.1

Features

SCI features are listed below.

• Choice of asynchronous or synchronous serial communication mode

Asynchronous mode:

 Serial data communication is executed using an asynchronous system in which

synchronization is achieved character by character

Serial data communication can be carried out with standard asynchronous communication

chips such as a Universal Asynchronous Receiver/Transmitter (UART) or Asynchronous

Communication Interface Adapter (ACIA)

 A multiprocessor communication function is provided that enables serial data

communication with a number of processors

 Choice of 12 serial data transfer formats

Data length:

7 or 8 bits

Stop bit length:

1 or 2 bits

Parity:

Even, odd, or none

Multiprocessor bit:

1 or 0

 Receive error detection: Parity, overrun, and framing errors

 Break detection:

Break can be detected by reading the RxD pin level

directly in case of a framing error

HD6432142 Datasheet(PDF) 467 Page - Renesas Technology Corp