CHAPTER 12 SERIAL INTERFACE FUNCTION
Preliminary User’s Manual U15905EJ1V0UD
398
Figure 12-38. Example of Master to Slave Communication
(When 9-Clock Wait Is Selected for Both Master and Slave) (2/3)
(b) Data
IIC
ACKD
STD
SPD
WTIM
H
H
L
L
L
L
L
L
H
H
H
H
L
L
L
L
L
ACKE
MSTS
STT
SPT
WREL
INTIIC
TRC
IIC
ACKD
STD
SPD
WTIM
ACKE
MSTS
STT
SPT
WREL
INTIIC
TRC
SCL
SDA
Processing by master device
Transfer lines
Processing by slave device
1
9
8
2
3
4
5
6
7
8
9
3
2
1
D7
D0
D6
D5
D4
D3
D2
D1
D0
D5
D6
D7
IIC
←
data
IIC
←
FFH
Note
IIC
←
FFH
Note
IIC
←
data
Transmit
Receive
Note
Note
Note
To cancel slave wait, write FFH to IIC or set WREL.
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