RZSLASHG2M datasheet(26/169 Pages) RENESAS

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RZ/G Series, 2nd Generation Datasheet

Section 1 Overview

R01DS0483EJ0101 Rev.1.01

Page 26 of 169

Jun 30, 2025

Item

Description

Serial communication

interface with FIFO

(SCIF)

(For All Products)

Overall

specification

• 6 channels

• Asynchronous, clock-synchronized modes

• Asynchronous serial communication mode

The SCIF performs serial data communication based on a character-

by-character asynchronous system. This feature enables serial data

communication with standard asynchronous communication chips

that support Universal Asynchronous Receiver/Transmitter (UART)

or Asynchronous Communication Interface Adapter (ACIA). There is

a choice of eight serial data transfer formats.

— Data length: 7 bits or 8 bits

— Stop bits: 1 bit or 2 bits

— Parity: Even/odd/none

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

— Break detection:

A break is detected when a framing error lasts for more than 1

frame length at Space 0 (low level).

When a framing error occurs, a break can also be detected by

reading the RX pin level directly from the serial port register

(SCSPTR).

• Clock synchronous serial communication mode

The SCIF performs serial data communication synchronized with a

clock. This feature enables serial data communication with other LSIs

that support synchronous communication. There is a single serial data

communication format for clock synchronous serial communication.

— Data length: 8 bits

— Receive error detection: Overrun errors

• Full-duplex communication capability

The SCIF has an independent transmitter and receiver that enable

simultaneous transmission and reception. The transmitter and

receiver both have a 16-stage FIFO buffer structure, enabling

continuous serial data transmission and reception.

• On-chip baud rate generator, enabling any bit rate to be selected

The SCIF enables choice of a clock source for transmission/reception:

a clock from the on-chip baud rate generator based on the internal

clock or an external clock.

• Eight interrupt sources

The SCIF has eight types of interrupt sources. receive-data-ready,

receive-FIFO-data-full, break, transmit-FIFO-data-empty, transmit-

end, receive-error, overrun-error and time-out and enables any of

them to be requested independently.

• DMA data transfer

When the transmit FIFO register is empty or the receive FIFO

the DMA controller (DMAC) to execute a data transfer.

• In asynchronous mode using channels 0, 1, 3, and 4, modem control

functions (RTS and CTS) are stored.

• RTS and CTS are not implemented for SCIF2 and SCIF5.

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