To Next Page

To Previous Page

R01UH0823EJ0100 Rev.1.00 Page 1302 of 1823

Jul 31, 2019

RX23W Group 37. Serial Sound Interface (SSI)

37. Serial Sound Interface (SSI)

This MCU integrates one channel of the serial sound interface (SSI) compliant with the I

S bus specification. The SSI

supports I

S data format and MSB-first and left-justified/right-justified formats, so it can be used to send or receive audio

data with various devices.

37.1 Overview

Table 37.1 SSI Specifications

Item Specifications

Number of channels One channel (SSI0)

Operating mode Non-compressed mode

Transmission formats

 I

S format supported

 MSB-first supported

Left-justified/right-justified formats selectable

Function

 Serves as both a transmitter and a receiver

Channel 0 supports full-duplex communications.

 Capable of various audio formats

 SSISCK0 (serial bit clock) can be selected from among 16, 32, 48, and 64 fs (fs: Sampling rate)

 The master clock (MCLK) can be selected from either of the following:

Master clock pin for audio (AUDIO_MCLK): 1 to 25 MHz

Main clock

 Includes 8-stage FIFO buffers in transmitter and receiver

 Capable of selecting whether to stop word select (SSIWS0) or not when data transmission is stopped

Interrupt sources Three sources

 Communication error

Transmit underflow, transmit overflow, receive underflow, receive overflow, and idle

 Receive data full

 Transmit data empty

Low power consumption

function

Module stop state can be set.

Renesas RX Series User Manual

Questions and Answers: