NEC V850/SB1 User Manual page 398

(When 9-Clock Wait Is Selected for Both Master and Slave) (3/3)
Processing by master device
IICn
ACKDn
STDn
SPDn
WTIMn
H
ACKEn
H
MSTSn
STTn
SPTn
WRELn
INTIICn
TRCn
Transfer lines
SCLn
SDAn
Processing by slave device
IICn
ACKDn
STDn
SPDn
WTIMn H
ACKEn H
MSTSn
L
STTn
L
SPTn
L
WRELn
INTIICn
TRCn
Note To cancel master wait, write FFH to IICn or set WRELn.
Remark n = 0, 1
398
CHAPTER 10 SERIAL INTERFACE FUNCTION
Figure 10-43. Example of Slave to Master Communication
(c) Stop condition
←
IICn FFH Note
Note
1 2 3 4 5
D7 D6 D5 D4 D3
←
IICn data
User's Manual U13850EJ6V0UD
6 7 8 9
D2 D1 D0
N−ACK
Stop
condition
←
IICn address
(When SPIEn = 1)
1 2
AD6 AD5
Start
condition
(When SPIEn = 1)