upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 636

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

Chapter 18
636
WRELn
INTIICn
WRELn
INTIICn
ACKDn
MSTSn
ACKDn
MSTSn
ACKEn
ACKEn
Processing by master device
WTIMn
SDA0n
WTIMn
Transfer lines
SCL0n
Processing by slave device
STDn
SPDn
TRCn
STDn
SPDn
TRCn
SPTn
SPTn
STTn
STTn
Figure 18-23
IICn
IICn
D0
8
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
Note
Receive
Transmit
ACK
9
Example of slave to master communication
(when 9-clock wait is selected for both master and slave) (2/3)
(b) data
To cancel master wait, write FFH to IICn or set WRELn.
Preliminary User’s Manual U17566EE1V2UM00
IICn ← data
D7
IICn ← FFH Note
1
Note
D6
2
D5
3
D4
4
D3
5
D2
6
D1
7
D0
8
ACK
9
IICn ← data
D7
1
IICn ← FFH Note
Note
D6
2
I
2
C Bus (IIC)
D5
3