Transfer Flow Of I C Interface - Fujitsu MB90335 Series Hardware Manual

MB90335 Series
19.3.1 Transfer Flow of I
Figure 19.3-1 shows the 1-byte transfer flow from master to slave, and Figure 19.3-2
shows the 1-byte transfer flow from slave to master.
■ Transfer Flow of I
Master
IDAR0: Writing
MSS: Writing "1"
BB set, TRX set
LRB reset
INT set,TRX set
IDAR0: Writing
INT : Writing "0"
LRB reset
INT set
MSS: Writing "0"
INT reset
BB reset,TRX reset
CM44-10137-6E
2
C Interface
2
C Interface
Figure 19.3-1 1-byte Transfer Flow from the Master to Slave
Address data transfer
Acknowledgement
FUJITSU MICROELECTRONICS LIMITED
Start
Start condition
Acknowledgement
Interrupt
Data transfer
Interrupt
Stop condition
End
2
CHAPTER 19 I C INTERFACE
2
19.3 I C Interface Operation
Slave
BB set, TRX set
AAS set
INT set,TRX set
ACK: Writing "1"
INT: Writing "0"
INT set
IDAR0: Read
INT: Writing "0"
BB reset,TRX reset
AAS reset
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