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The communication reservation flowchart is illustrated below.
(Communication reservation)
Note The communication reservation operation executes a write to the IIC0 register when a stop condition
interrupt request occurs.
CHAPTER 16 I
Figure 16-14. Communication Reservation Flowchart
DI
STT0 = 1
Define communication
reservation
Wait
Note
MSTS0 = 0?
Yes
No
(Generate start condition)
Cancel communication
reservation
IIC0 ← ××H
EI
User's Manual U16896EJ2V0UD
2
C BUS
; Sets STT0 flag (communication reservation).
; Defines that communication reservation is in effect
(defines and sets user flag to any part of RAM).
; Gets wait period set by software (refer to Table 16-6).
; Confirmation of communication reservation
; Clear user flag.
; IIC0 write operation
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