upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 633
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
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I
2
C Bus (IIC)
WRELn
INTIICn
WRELn
INTIICn
ACKDn
MSTSn
ACKDn
MSTSn
ACKEn
ACKEn
WTIMn
WTIMn
Figure 18-20
Processing by master device
SDA0n
Transfer lines
SCL0n
Processing by slave device
STDn
SPDn
TRCn
STDn
SPDn
TRCn
SPTn
SPTn
STTn
STTn
IICn
IICn
D0
8
Note
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
Receive
Transmit
9
Example of master to slave communication
(when 9-clock wait is selected for both master and slave) (2/3)
(b) data
To cancel slave wait, write FFH to IICn or set WRELn.
Preliminary User’s Manual U17566EE1V2UM00
IICn
←
D7
1
IICn
data
Note
D6
←
2
FFH Note
D5
3
D4
4
D3
5
D2
6
D1
7
D0
8
9
IICn
←
D7
data
1
IICn
Note
D6
←
2
FFH Note
D5
Chapter 18
3
633
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