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CHAPTER 11 SERIAL INTERFACE FUNCTION
422
User’s Manual U15109EJ3V0UD
Figure 11-36. Communication Reservation Flowchart (2)
DI
EI
DI
No
Yes
No
Yes
IICBSYn = 0 ?
SET1 STTn
EI
STCFn = 0 ?
IICn
←
××
H
Set STTn bit
Wait time (Table 11-11) is
secured by software
IICn write operation
Bus communicating status
Wait
Master communication
stopped
Remark
n = 0, 1