SH7760 Datasheet, PDF (731/1345 Pages) Renesas Technology Corp – SuperHTM RISC engine

Section 20 Serial Sound Interface (SSI) Module
The serial sound interface (SSI) module is a module designed to send or receive audio data
interface with a variety of devices offering Philips format compatibility. It also provides additional
modes for other common formats, as well as support for a burst and multi-channel mode.
20.1 Features
The SSI has the following features.
• Number of channels: Two channels (maximum)
• Operating modes: Compressed mode and non-compressed mode
The compressed mode is used for continuous bit stream transfer
The non-compressed mode supports all serial audio streams divided into channels.
• The SSI module is configured as any of a transmitter or receiver. The serial bus format can be
used in the compressed and non-compressed mode.
• Asynchronous transfer between the buffer and the shift register
• Division ratios of the serial bus interface clock can be selected.
• Data transmission/reception can be controlled from the DMAC or interrupt.
Figure 20.1 is a block diagram of the SSI module.
Rev. 1.0, 02/03, page 681 of 1294