Renesas R5S72641 User Manual

 
Section 17   I

2

C Bus Interface 3 

Page 884 of 2108 

 

R01UH0134EJ0400  Rev. 4.00 

 

 Sep 

24, 

2014 

SH7262 Group, SH7264 Group

TDRE=1 ?

Yes

Yes

No

Slave transmit mode

Clear AAS in ICSR

Write transmit data

in ICDRT

Read TDRE in ICSR

Last

byte?

Write transmit data

in ICDRT

Read TEND in ICSR

Clear TEND in ICSR

Clear TRS in ICCR1 to 0

Dummy-read ICDRR

Clear TDRE in ICSR

End

[1]  Clear the AAS flag.

[2]  Set transmit data for ICDRT (except for the last byte).

[3]  Wait for ICDRT empty.

[4]  Set the last byte of transmit data.

[5]  Wait for the last byte to be transmitted.

[6]  Clear the TEND flag.

[7]  Set slave receive mode.

[8]  Dummy-read ICDRR to release the SCL.

[9]  Clear the TDRE flag. 

No

No

Yes

TEND=1 ?

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]