HD64F3664BPV Datasheet, PDF (295/446 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 15 I²C Bus Interface (IIC)
Slave transmit mode
Clear IRIC in ICCR
Write transmit data in ICDR
Clear IRIC in ICCR
Read IRIC in ICCR
[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] Set slave receive mode.
[5] Dummy read (to release the SCL line).
No
[2]
IRIC = 1?
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 15.16 Sample Flowchart for Slave Transmit Mode
Rev. 6.00 Mar. 24, 2006 Page 265 of 412
REJ09B0142-0600