Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 19 I
2
C BUS
R01UH0042EJ0500 Rev.5.00 Page 890 of 1513
Aug 12, 2011
Figure 19-24. Example of Slave to Master Communication
(When 8-Clock Wait for Master and 9-Clock Wait for Slave Are Selected) (2/3)
(b) Data
IICn
ACKDn
STDn
SPDn
WTIMn
H
H
H
L
L
L
L
L
L
L
H
H
L
L
L
L
L
ACKEn
MSTSn
STTn
SPTn
WRELn
INTIICn
TRCn
IICn
ACKDn
STDn
SPDn
WTIMn
ACKEn
MSTSn
STTn
SPTn
WRELn
INTIICn
TRCn
SCL0n
SDA0n
1
89
2345678 9
321
D7
D0 ACK
D6 D5 D4 D3 D2 D1 D0 ACK
D5D6D7
Note 1 Note 1
IICn ← data Note 2 IICn ← data Note 2
IICn ← FFH Note 1 IICn ← FFH Note 1
Processing by master device
Receive
Transfer lines
Processing by slave device
Transmit
Notes 1. To cancel the master wait state, write FFH to IICn or set WRELn.
2. Cancel the wait during a slave transmission by writing to IICn, not by setting WRELn.
Remark n = 0 to 2