NEC V850ES/F 3-L Series User Manual page 523

2
I C Bus (IIC)
Processing by master device
IICn
ACKDn
STDn
SPDn
WTIMn
H
ACKEn H
MSTSn
STTn
L
SPTn
WRELn
INTIICn
TRCn
Transfer lines
SCL0n
SDA0n
Start condition
Processing by slave device
IICn
ACKDn
STDn
SPDn
WTIMn H
ACKEn H
L
MSTSn
L
STTn
SPTn L
L
WRELn
INTIICn
TRCn
Figure 17-22
Note
←
IICn address
1 2 3 4 5
AD6 AD5 AD4 AD3 AD2 AD1 AD0
Example of slave to master communication
(when 9-clock wait is selected for both master and slave) (1/3)
(a) start condition ~ address
To cancel master wait, write FFH to IICn or set WRELn.
User's Manual U18743EE1V2UM00
6 7 8 9
R
←
IICn FFH Note
Note
1 2 3 4 5
D7 D6 D5 D4 D3
←
IICn data
Chapter 17
6
D2
523