SH7760 Datasheet, PDF (746/1345 Pages) Renesas Technology Corp – SuperHTM RISC engine

20.4 Operation
20.4.1 Bus Format
The SSI module can operate as a transmitter or a receiver and can be configured into many serial
bus formats in either mode.
The bus formats can be one of eight major modes as shown in table 20.3.
Table 20.3 Bus Formats of SSI Module
Bus Format
Non-Compressed
Slave Receiver
0000
Non-Compressed
Slave Transmitter
1000
Non-Compressed
Master Receiver
0011
Non-Compressed 1 0 1 1
Master Transmitter
Compressed Slave 0 1 0/1 0
Receiver
Compressed Slave 1 1 0/1 0
Transmitter
Compressed
Master Receiver
0 1 0/1 1
Compressed
1 1 0/1 1
Master Transmitter
Control bits
Control bits
Configuration bits
Ignored
Configu-
ration
bits
Ignored
20.4.2 Non-Compressed Modes
The non-compressed mode is designed to support all serial audio streams which are split into
channels. It can support Philips, Sony and Matsushita modes as well as many more variants on
these modes.
(1) Slave Receiver
This mode allows the SSI module to receive serial data from another device. The clock and
word select signals used for the serial data stream are also supplied from an external device. If
these signals do not conform to the format as specified in the SSI module then operation is not
guaranteed.
Rev. 1.0, 02/03, page 696 of 1294