HD6432633 Datasheet, PDF (900/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

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