HD6433694 Datasheet, PDF (269/432 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

4. The last byte data is read by reading ICDRR.
SCL
(Master output)
9
SDA
(Master output)
SCL
(Slave output)
SDA
A
(Slave output)
RDRF
1
2
3
4
5
6
7
8
9
1
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Bit 7
A
ICDRS
Data 1
Data 2
ICDRR
User
processing
Data 1
[2] Read ICDRR (dummy read)
[2] Read ICDRR
Figure 15.11 Slave Receive Mode Operation Timing (1)
SCL
(Master output)
SDA
(Master output)
SCL
(Slave output)
SDA
(Slave output)
RDRF
ICDRS
ICDRR
User
processing
9
1
2
3
4
5
6
7
8
9
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
A
A
Data 1
Data 2
Data 1
[3] Set ACKBT [3] Read ICDRR [4] Read ICDRR
Figure 15.12 Slave Receive Mode Operation Timing (2)
Rev. 4.00, 03/04, page 241 of 400