NEC V850ES/KE1+ User Manual page 526

<R>
Processing by master device
IIC0
ACKD0
STD0 L
SPD0
L
WTIM0
H
ACKE0 H
MSTS0 H
STT0
L
L
SPT0
WREL0 L
INTIIC0
TRC0
H
Transfer lines
8
SCL0
SDA0 D0
Processing by slave device
IIC0
ACKD0
STD0 L
SPD0 L
WTIM0 H
H
ACKE0
MSTS0
L
STT0 L
SPT0
L
WREL0
INTIIC0
TRC0 L
Note To cancel slave wait, write FFH to IIC0 or set WREL0.
526
CHAPTER 16 I
Figure 16-20. Example of Master to Slave Communication
(When 9-Clock Wait Is Selected for Both Master and Slave) (2/3)
←
IIC0 data
Transmit
9 1 2 3 4
ACK D7 D6 D5 D4
←
IIC0 FFH Note
Note
Receive
User's Manual U16896EJ2V0UD
2
C BUS
(b) Data
5 6 7 8 9
D3 D2 D1 D0 ACK
←
IIC0 data
1 2 3
D7 D6 D5
←
IIC0 FFH Note
Note