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MB90335 Series
19.3.2
Mode Flow of I
Figure 19.3-3 shows the flow of mode transitions for the I
2
■ Flow of I
C Interface Mode Transitions
CM44-10137-6E
2
C Interface
Figure 19.3-3 I
Slave receive mode
SCC
NO
YES
TRX,AAS,LRB:reset
FBT:set
YES
SCC&BB=1
NO
BB:set
8 bits received
Address comparison
Match
Acknowledgement
AAS: set
output
INT:set
SCL0 line
retained at "L"
NO
TRX=1
YES
Slave send mode
INT: 0 write
FBT:reset
SCL0 line freed
Send/receive
YES
Acknowledgement
received?
NO
TRX:reset
FUJITSU MICROELECTRONICS LIMITED
2
C interface.
2
C Mode Flow
RSC:set
RSC,FBT:reset
Slave receive mode
YES
SCC
NO
2
CHAPTER 19 I
C INTERFACE
2
19.3 I
C Interface Operation
AAS,LRB,BB,RSC
:reset
451
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