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4 operation, 1 bus format – Renesas SH7781 User Manual

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26. Serial Sound Interface (SSI) Module

Rev.1.00 Jan. 10, 2008 Page 1314 of 1658
REJ09B0261-0100

26.4

Operation

26.4.1

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 26.3.

Table 26.3 Bus Formats of SSI Module

Bus Format

TPMD

CPEN

SCKD

SWSD

EN

MUEN

DIEN

IIEN

OIE

N

UIEN

DEL

PDTA

SDTA

SPDP

SWSP

SCKP

SWL[2:0

]

DWL[2

:0]

CHNL

[1:0

]

Non-Compressed
Slave Receiver

0 0 0 0

Non-Compressed
Slave Transmitter

1 0 0 0

Non-Compressed
Master Receiver

0 0 1 1

Non-Compressed
Master Transmitter

1 0 1 1

Control bits

Configuration bits

Compressed Slave
Receiver

0 1 0/1 0

Control

bits

1 Ignored Configu-

ration

bits

Ignored

Compressed Slave
Transmitter

Cannot be used

Compressed
Master Receiver

0 1 0/1 1

Compressed
Master Transmitter

1 1 0/1 1

Control bits

1

Ignored

Configu-

ration

bits

Ignored