CHAPTER 16 I
2
C BUS
User’s Manual U16896EJ2V0UD
529
Figure 16-21. Example of Slave to Master Communication
(When 8-Clock Wait for Master and 9-Clock Wait for Slave Are Selected) (2/3)
(b) Data
IIC0
ACKD0
STD0
SPD0
WTIM0
H
H
H
L
L
L
L
L
L
L
H
H
L
L
L
L
L
ACKE0
MSTS0
STT0
SPT0
WREL0
INTIIC0
TRC0
IIC0
ACKD0
STD0
SPD0
WTIM0
ACKE0
MSTS0
STT0
SPT0
WREL0
INTIIC0
TRC0
SCL0
SDA0
Processing by master device
Transfer lines
Processing by slave device
1
8
9
2
3
4
5
6
7
8
9
3
2
1
D7
D0
ACK
D6
D5
D4
D3
D2
D1
D0
ACK
D5
D6
D7
Note
Note
Receive
Transmit
IIC0
←
data
IIC0
←
data
IIC0
←
FFH
Note
IIC0
←
FFH
Note
Note
To cancel master wait, write FFH to IIC0 or set WREL0.
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