Renesas H8S/2633 Series Hardware Manual page 900

Slave transmit mode
Clear IRIC in ICCR
Write transmit data in ICDR
Clear IRIC in ICCR
Read IRIC in ICCR
No
IRIC = 1?
Read ACKB in ICSR
No
of transmission
(ACKB = 1)?
Set TRS = 0 in ICCR
Read ICDR
Clear IRIC in ICCR
Figure 18-20 Flowchart for Slave Receive Mode (Example)
846
Yes
End
Yes
End
[1] Set transmit data for the second and
subsequent bytes.
[2] Wait for 1 byte to be transmitted.
[1]
[3] Test for end of transfer.
[4] Select slave receive mode.
[5] Dummy read (to release the SCL line).
[2]
[3]
[4]
[5]