SH7763 Datasheet, PDF (1297/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 29 Serial I/O with FIFO (SIOF)
(3) Transmission in Slave Mode
Figure 29.11 shows an example of settings and operation for slave mode transmission.
No.
Flow Chart
Start
1
Set SIMDR, SISCR, SITDAR,
SICDAR, SITCR, and SIFCTR
2
Set the TXE bit in SICTR to 1
3
No
TDREQ = 1?
Yes
4
Set SITDR
SIOF Settings
SIOF Operation
Set operating mode, serial clock,
slot positions for transmit data,
slot position for control data,
control data, and FIFO request
threshold value
Set to enable transmission
Issue transmit transfer request
to enable transmission when
frame synchronous signal is
input
Set transmit data
5
Transmit SITDR from SIOFTXD
synchronously with SIOF_SYNC
Transmit
Transfer
No
ended?
Yes
6
Clear the TXE bit in SICTR to 0
End
Set to disable transmission
End transmission
Figure 29.11 Example of Transmit Operation in Slave Mode
Rev. 1.00 Oct. 01, 2007 Page 1231 of 1956
REJ09B0256-0100