Renesas Hitachi H8S/2194 Series Hardware Manual page 591

Slave transmit mode
Clear IRIC in ICCR
Write transmit data in ICDR
Clear IRIC flag in ICCR
Read IRIC flag in ICCR
No
IRIC=1?
Yes
Read ACKB bit in ICSR
No
End of transmission
(ACKB=1)?
Yes
Set TRS=0 in ICCR
Read ICDR
Clear IRIC flag in ICCR
End
Figure 25.17 Flowchart for Slave Receive Mode (Example)
Rev. 2.0, 11/00, page 564 of 1037
Set transmit data for the second and
[1]
subsequent bytes.
[2] Wait for 1 byte to be transmitted.
Test for end of transfer.
[1] [3]
Select slave receive mode.
[4]
Dummy read (to release the SCL line).
[5]
[2]
[3]
[4]
[5]