634
Chapter 18
I
2
C Bus (IIC)
Preliminary User’s Manual U17566EE1V2UM00
Figure 18-21
Example of master to slave communication
(when 9-clock wait is selected for both master and slave) (3/3)
(c) stop condition
Note
To cancel slave wait, write FFH to IICn or set WRELn.
IICn
ACKDn
S
TDn
S
PDn
WTIMn
H
H
L
L
L
L
H
H
H
L
ACKEn
M
S
T
S
n
S
TTn
S
PTn
WRELn
INTIICn
TRCn
IICn
ACKDn
S
TDn
S
PDn
WTIMn
ACKEn
M
S
T
S
n
S
TTn
S
PTn
WRELn
INTIICn
TRCn
S
CL0n
S
DA0n
Proce
ss
ing
b
y m
as
ter device
Tr
a
n
s
fer line
s
Proce
ss
ing
b
y
s
l
a
ve device
1
2
3
4
5
6
7
8
9
2
1
D7
D6
D5
D4
D
3
D2
D1
D0
AD5
AD6
IICn
←
d
a
t
a
IICn
←
a
ddre
ss
IICn
←
FFH
Note
IICn
←
FFH
Note
S
top
condition
S
t
a
rt
condition
Tr
a
n
s
mit
Note
Note
(When
S
PIEn = 1)
Receive
(When
S
PIEn = 1)
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