upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 632

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 18
632
WRELn
INTIICn
WRELn
INTIICn
ACKDn
MSTSn
ACKDn
MSTSn
ACKEn
ACKEn
Processing by master device
WTIMn
SDA0n
WTIMn
Figure 18-19
Transfer lines
SCL0n
Processing by slave device
SPDn
TRCn
SPDn
TRCn
STDn
STDn
SPTn
SPTn
STTn
STTn
IICn
IICn
Start condition
L
Note
H
H
H
H
H
L
L
L
L
L
Receive
IICn
AD6 AD5 AD4 AD3 AD2 AD1 AD0
Transmit
Example of master to slave communication
(when 9-clock wait is selected for both master and slave) (1/3)
start condition ~ address
To cancel slave wait, write FFH to IICn or set WRELn.
Preliminary User’s Manual U17566EE1V2UM00
←
1
address
2
3
4
5
(When EXCn = 1)
6
7
W
8
ACK
9
IICn
D7
1
IICn
←
Note
D6
data
2
←
FFH
D5
3
I
Note
2
D4
C Bus (IIC)
4