SH7052 datasheet(465/919 Pages) RENESAS

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Section 14 Serial Communication Interface (SCI)

14.1

Overview

The SH7052F/SH7053F/SH7054F has a serial communication interface (SCI) with five

independent channels.

The SCI supports both asynchronous and synchronous serial communication. It also has a

multiprocessor communication function for serial communication between two or more

processors, and a clock inverted input/output function.

14.1.1

Features

The SCI has the following features:

• Selection of asynchronous or synchronous as the serial communication mode

 Asynchronous mode

Serial data communication is synchronized in character units. The SCI can communicate

with a universal asynchronous receiver/transmitter (UART), an asynchronous

communication interface adapter (ACIA), or any other chip that employs standard

asynchronous serial communication. It can also communicate with two or more other

processors using the multiprocessor communication function. There are twelve selectable

serial data communication formats.

• Data length: seven or eight bits

• Stop bit length: one or two bits

• Parity: even, odd, or none

• Multiprocessor bit: one or none

• Receive error detection: parity, overrun, and framing errors

• Break detection: by reading the RxD level directly when a framing error occurs

 Synchronous mode

Serial data communication is synchronized with a clock signal. The SCI can communicate

with other chips having a synchronous communication function. There is one serial data

communication format.

• Data length: eight bits

• Receive error detection: overrun errors

• Serial clock inverted input/output

• Full duplex communication: The transmitting and receiving sections are independent, so the

SCI can transmit and receive simultaneously. Both sections use double buffering, so

continuous data transfer is possible in both the transmit and receive directions.

• On-chip baud rate generator with selectable bit rates

SH7052 Datasheet(PDF) 465 Page - Renesas Technology Corp