(When 9-Clock Wait Is Selected For Both Master And Slave) (1/3 - NEC V850/SB1 User Manual

Figure 10-42. Example of Master to Slave Communication

(When 9-Clock Wait Is Selected for Both Master and Slave) (1/3)

Processing by master device
←
IICn IICn
ACKDn
STDn
SPDn
WTIMn H
ACKEn H
MSTSn
STTn
SPTn L
WRELn L
INTIICn
TRCn H
Transmit
Transfer lines
1
SCLn
AD6 AD5 AD4 AD3 AD2 AD1 AD0
SDAn
Start condition
Processing by slave device
IICn
ACKDn
STDn
SPDn
WTIMn H
H
ACKEn
MSTSn L
STTn
L
SPTn
L
WRELn
INTIICn
TRCn L
Receive
Note To cancel slave wait, write FFH to IICn or set WRELn.
Remark n = 0, 1
CHAPTER 10 SERIAL INTERFACE FUNCTION
(a) Start condition ~ address
address
2 3 4 5 6 7
(When EXC = 1)
User's Manual U13850EJ6V0UD
IICn
8 9 1
W ACK D7
←
data
2 3 4
D6 D5 D4
←
Note
IICn FFH
Note
393