upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 635

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

I
2
C Bus (IIC)
WRELn
INTIICn
WRELn
INTIICn
ACKDn
ACKEn
MSTSn
ACKDn
ACKEn
MSTSn
WTIMn
WTIMn
Processing by master device
SDA0n
Transfer lines
SCL0n
Figure 18-22
Processing by slave device
STDn
SPDn
TRCn
STDn
SPDn
TRCn
SPTn
SPTn
STTn
STTn
IICn
IICn
H
H
H
H
Note
L
L
L
L
L
Start condition
IICn
AD6 AD5 AD4 AD3 AD2 AD1 AD0
1
Example of slave to master communication
(when 9-clock wait is selected for both master and slave) (1/3)
(a) start condition ~ address
To cancel master wait, write FFH to IICn or set WRELn.
Preliminary User’s Manual U17566EE1V2UM00
←
address
2
3
4
5
6
7
R
8
9
IICn
D7
1
←
IICn
Note
data
←
D6
2
FFH Note
D5
3
D4
4
D3
5
Chapter 18
D2
6
635