CHAPTER 10 SERIAL INTERFACE FUNCTION
User’s Manual U13850EJ6V0UD
326
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Slave operation
An example of slave operation is shown below.
Figure 10-20. Slave Operation Flowchart
IICCn
← ××
H
IICEn = 1
WRELn = 1
Start reception.
START
ACKEn = 0
Data processing
Data processing
LRELn = 1
No
Yes
No
No
No (receive)
No
No
No
No
Yes
No
Yes
Yes
Yes (transmit)
Yes
Yes
Yes
WTIMn = 0
ACKEn = 1
INTIICn = 1?
Yes
Communicate?
Transfer completed?
INTIICn = 1?
WTIMn = 1
Start IICn write transfer.
INTIICn = 1?
EXCn = 1?
COIn = 1?
TRCn = 1?
ACKDn = 1?
End
START
or
STOP
STOP (stop condition detection)
Remark
n = 0, 1
Содержание V850/SB1
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