SH7764 Datasheet, PDF(64/1752 Page) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

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SH7764 Datasheet, PDF (64/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

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Section 1 Overview

Items

Specification

Serial sound interface â¢ Six-channel bidirectional serial transfers

(SSI)

â¢ Supports various real audio formats

â¢ Master and slave functions

â¢ Programmably generates a word clock or bit clock

â¢ Supports multichannel format

â¢ Supports 8-, 16-, 18-, 20-, 22-, 24-, or 32-bit data format

â¢ SSI network function

Any audio clock channels can be connected. See the following

examples.

ï£§ Example 1: All audio clocks are connected.

ï£§ Example 2: Audio clocks for channels 0 to 2 are connected.

ï£§ Example 3: Audio clocks are connected for channels 0 and 1,

channels 2 and 3, and channels 4 and 5, respectively.

ï£§ Example 4: Audio clocks for all channels are used independently.

In the same way, the SSISCK and SSIWS pins for any channels can

be connected as a set. This setting can be made independently from

the audio clock connection settings.

â¢ SSI-DMAC

A dedicated DMAC for the SSI is provided to transfer data between

the SSI and external or on-chip memory.

ï£§ Number of channels: Six for transmission and six for reception

ï£§ Transfer data size: 8, 16, or 32 bytes

ï£§ Maximum transfer byte count: 4,294,967,296

ï£§ Bus mode: Cycle-steal mode

ï£§ Priority: Fixed channel priority mode or round robin mode

selectable

Rev. 1.00 Nov. 22, 2007 Page 8 of 1692

REJ09B0360-0100

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