Renesas R5S72641 User Manual

 

 

Section 19   Serial I/O with FIFO 

 

 

Page 972 of 2108 

 

R01UH0134EJ0400  Rev. 4.00 

 

 Sep 

24, 

2014 

SH7262 Group, SH7264 Group

Figure 19.8 shows an example of transmission settings and operation for when this module is used 
as a slave. 

Start

No

Yes

No

Yes

End

No.

1

2

3

4

5

6

Set SIMDR, SISCR, SITDAR,

and SIFCTR

Set the TXE bit in SICTR to 1

TDREQ = 1?

Set SITDR

Transmit SITDR from SIOFTXD

synchronously with SIOFSYNC

Transfer

ended?

Clear the TXE bit in SICTR to 0

Set operating mode, serial clock,
slot position for transmit data, 
and FIFO request threshold 
value

Set transmit data

Set to disable transmission

Issue transmit transfer request 
to enable transmission when  
frame synchronous signal is  
input

Transmit

End transmission

Flow Chart

Settings of This Module

Operation of This Module

Set to enable transmission