Overview; Section 12 Serial Communication Interface (Sci) - Renesas H8S/2319 series Hardware Manual

Section 12 Serial Communication Interface (SCI)

12.1

Overview

The chip is equipped with a serial communication interface (SCI) that can handle both
asynchronous and synchronous serial communication. A function is also provided for serial
communication between processors (multiprocessor communication function).
12.1.1 Features
SCI features are listed below.
• Choice of asynchronous or synchronous serial communication mode
Asynchronous mode
 Serial data communication 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
Stop bit length
Parity
Multiprocessor bit
 Receive error detection : Parity, overrun, and framing errors
 Break detection
Synchronous mode
 Serial data communication synchronized with a clock
 Serial data communication can be carried out with other chips that have a synchronous
communication function
 One serial data transfer format
Data length
 Receive error detection : Overrun errors detected
: 7 or 8 bits
: 1 or 2 bits
: Even, odd, or none
: 1 or 0
: Break can be detected by reading the RxD pin level
directly in case of a framing error
: 8 bits
Rev. 5.00, 12/03, page 421 of 1088