Datasheet

Section 17 I
2
C Bus Interface 2 (IIC2)
R01UH0309EJ0500 Rev. 5.00 Page 1047 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
ICDRS
ICDRR
12 1345678 99
A
A
RDRF
Data 1 Data 2
Data 1
SCL
(master output)
SDA
(master output)
SDA
(slave output)
SCL
(slave output)
Bit 7 Bit 7Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
[4] Read ICDRR (dummy read).
[7] Read ICDRR.
User
processing
Figure 17.11 Slave Receive Mode Operation Timing 1
ICDRS
ICDRR
12345678 99
A
A
RDRF
SCL
(master output)
SDA
(master output)
SDA
(slave output)
SCL
(slave output)
User
processing
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Data 1
[8] Set ACKBT
[9] Read ICDRR
.
[11] Read ICDRR .
Data 2
Data 1
Figure 17.12 Slave Receive Mode Operation Timing 2