Renesas PROM Programming Adapter PCA7408 Manuel d'utilisateur Page 25

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Vue de la page 24
M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
Rev.1.00 Oct 01, 2002 page 25 of 110
REJ03B0134-0100Z
Fig. 8.4.2 Timer 34 Mode Register
b
7b
6 b
5b
4b
3 b
2b
1b
0
Timer 34 mode register (T34M) [Address 00F5
16]
B
After reset
RW
Timer 34 Mode Register
0
N
a
m
e
F
u
n
c
t
i
o
n
s
Timer 3 count source
selection bit (T34M0)
0 RW
1
Timer 4 internal
interrupt count source
selection bit (T34M1)
0RW
2
3
Timer 3 count stop bit
(T34M2)
0: Count start
1: Count stop
T
i
m
e
r
4
c
o
u
n
t
s
t
o
p
b
i
t
(
T
3
4
M
3
)
0: Count start
1: Count stop
0
0
4
T
i
m
e
r
4
c
o
u
n
t
s
o
u
r
c
e
s
e
l
e
c
t
i
o
n
b
i
t
(
T
3
4
M
4
)
0: Internal clock source
1: f(X
IN)/2
0
5
T
i
m
e
r
3
e
x
t
e
r
n
a
l
c
o
u
n
t
s
o
u
r
c
e
s
e
l
e
c
t
i
o
n
b
i
t
(
T
3
4
M
5
)
0
:
T
I
M
3
p
i
n
i
n
p
u
t
1
:
H
S
Y
N
C
p
i
n
i
n
p
u
t
0
RW
RW
RW
RW
0
:
f
(
X
I
N)
/
1
6
1
:
E
x
t
e
r
n
a
l
c
l
o
c
k
s
o
u
r
c
e
0
:
T
i
m
e
r
3
o
v
e
r
f
l
o
w
s
i
g
n
a
l
1
:
f
(
X
I
N)
/
1
6
6
,
7Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
0—R
Fig. 8.4.1 Timer 12 Mode Register
b
7b
6 b
5b
4b
3 b
2b
1b
0
Timer mode register (T12M) [Address 00F4
16]
B
A
f
t
e
r
r
e
s
e
t
W
T
i
m
e
r
1
2
M
o
d
e
R
e
g
i
s
t
e
r
0
1
2
3
4
Nam
e
Functions
Timer 1 count source
selection bit 1 (T12M0)
0: f(X
IN)/16
1: f(X
IN)/4096
Timer 2 count source
selection bit (T12M1)
0: Interrupt clock source
1: External clock from TIM2 pin
Timer 1 count
stop bit (T12M2)
0: Count start
1: Count stop
Timer 2 count stop bit
(T12M3)
0: Count start
1: Count stop
Timer 2 internal count
source selection bit 2
(T12M4)
R
0
0
0
0
0
WR
WR
WR
WR
WR
0: f(X
IN)/16
1: Timer 1 overflow
5
Fix this bit to “0.”
0
WR
6, 7 Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
0—R
0
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