CHAPTER 10 SERIAL INTERFACE FUNCTION
User’s Manual U13850EJ6V0UD
328
Figure 10-21. Example of Master to Slave Communication
(When 9-Clock Wait Is Selected for Both Master and Slave) (1/3)
(a) Start condition ~ address
IICn
ACKDn
STDn
SPDn
WTIMn
H
H
L
L
L
L
H
H
H
L
L
ACKEn
MSTSn
STTn
SPTn
WRELn
INTIICn
TRCn
IICn
ACKDn
STDn
SPDn
WTIMn
ACKEn
MSTSn
STTn
SPTn
WRELn
INTIICn
TRCn
SCLn
SDAn
Processing by master device
Transfer lines
Processing by slave device
1
2
3
4
5
6
7
8
9
4
3
2
1
AD6 AD5 AD4 AD3 AD2 AD1 AD0
W
ACK
D4
D5
D6
D7
IICn
←
address
IICn
←
data
IICn
←
FFH
Transmit
Start condition
Receive
(When EXC = 1)
Note
Note
Note
To cancel slave wait, write FFH to IICn or set WRELn.
Remark
n = 0, 1
Содержание V850/SB1
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