SH7764 Datasheet, PDF (731/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 18 Serial Sound Interface (SSI)
Initial
Bit
Bit Name Value R/W Description
1
SWNO 1
R
Serial Word Number
This bit indicates the current serial word number.
• TRMD = 0 (Receive mode)
This bit indicates the current serial word number of
the current data in SSIRDR0 to SSIRDR5. This bit
value will change, when the data in SSIRDR0 to
SSIRDR5 is updated by transfer from the shift
register, regardless whether the data has been read
out from SSIRDR0 to SSIRDR5.
• TRMD = 1 (Transmit mode)
This bit indicates the current serial word number to
be written to SSITDR0 to SSITDR5. This bit value
will change when data is copied to the shift register,
regardless whether the data is written in SSITDR0
to SSITDR5.
Rev. 1.00 Nov. 22, 2007 Page 675 of 1692
REJ09B0360-0100