![](http://datasheet.mmic.net.cn/230000/7540_datasheet_15567442/7540_155.png)
7540 Group User
’
s Manual
2-80
APPLICATION
2.5 Timer Y and timer Z
(2) Programmable waveform generation mode setting method
Figure 2.5.24 and Figure 2.5.25 show the setting method for programmable waveform generation
mode of timer Y.
When timer Z is used, registers are set by the same method.
Fig. 2.5.24 Setting method for programmable waveform generation mode (1)
b
7
b0
1
1
1
b
7
b0
Timer Y primary waveform extension control bit (
Note
)
0: Waveform not extended
1: Waveform extended
Timer Y secondary waveform extension control bit (
Note
)
0: Waveform not extended
1: Waveform extended
Timer Y output level latch
0: Initial state at stop:
“
L
”
,
“
H
”
interval by TYP setting value,
“
L
”
interval by TYS setting value
1: Initial state at stop:
“
H
”
,
“
L
”
interval by TYP setting value,
“
H
”
interval by TYS setting value
P
r
o
c
e
s
s
7
4
:
S
e
t
T
Y
O
U
T
p
0
i
n
t
o
t
h
e
o
u
t
p
u
t
(
N
o
t
e
)
.
Port P0 direction register (P0D) [Address 01
16
]
S
e
t
P
0
1
/
T
Y
O
U
T
p
i
n
a
s
t
h
e
o
u
t
p
u
t
m
o
d
e
b
b
1
Note:
For timer Z, set TZ
OUT
pin as the output by bit 2 of P0D.
b7
b0
0
N
o
t
e
:
W
t
h
o
e
s
n
e
l
u
e
s
c
i
t
n
“
g
w
t
r
h
i
t
i
e
s
t
m
o
o
l
d
t
e
c
,
h
b
o
e
n
s
l
y
u
”
r
.
e
t
o
s
e
t
“
1
”
t
o
t
h
e
t
i
m
e
r
Y
w
r
i
t
e
c
o
n
t
r
o
l
b
i
t
a
P
r
o
c
e
s
s
1
:
D
i
s
a
b
l
e
t
i
m
e
r
Y
i
n
In
t
e
r
r
u
p
t
.
P
r
o
c
e
s
s
2
:
S
e
t
t
i
m
e
r
Y
,
Z
m
o
d
e
r
e
g
i
s
t
e
r
.
T
i
r
W
T
i
m
e
r
Y
,
Z
m
o
d
e
r
e
g
i
s
t
e
r
(
T
Y
Z
M
)
[
A
d
d
r
e
s
s
2
0
1
6
]
P
o
r
m
g
t
e
e
r
a
t
r
m
o
Y
m
o
c
a
l
u
b
y
n
l
l
e
a
t
t
s
w
c
t
a
h
o
v
(
N
p
e
f
o
o
r
t
m
e
)
g
e
n
e
r
a
t
i
o
n
m
o
d
e
i
n
o
t
e
r
r
u
p
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
2
(
I
C
O
N
2
)
[
A
d
d
r
e
s
s
3
F
1
6
]
Timer Y interrupt disabled
P
r
o
c
e
s
s
3
:
S
e
t
t
i
m
e
r
Y
,
Z
w
a
v
e
f
o
r
m
o
u
t
p
u
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
.
Timer Y, Z waveform output control register (PUM) [Address 24
16
]
N
o
t
e
:
T
h
c
W
t
o
T
c
W
t
o
A
t
h
e
o
n
h
E
h
e
o
n
h
E
l
s
e
w
t
e
X
t
r
e
X
o
w
a
o
n
v
l
t
P
a
o
n
P
,
w
a
e
b
h
Y
v
l
b
t
h
Z
h
v
f
i
e
P
e
i
t
e
P
e
e
o
t
r
m
c
v
a
a
f
o
s
v
a
n
o
r
e
n
u
d
m
c
a
a
l
u
n
d
t
h
m
x
e
E
e
n
e
E
e
e
t
b
o
X
x
b
o
X
t
i
m
x
t
e
e
n
t
h
P
t
e
e
t
h
P
s
u
e
Y
n
u
e
Z
e
r
e
n
i
s
r
o
e
S
s
s
e
r
S
Y
s
i
n
d
t
h
.
i
o
d
t
.
o
n
f
a
u
o
n
n
n
c
l
y
“
t
i
o
w
0
1
n
h
6
”
e
b
y
n
i
t
“
h
0
s
e
0
1
e
t
6
”
t
i
m
o
e
s
p
r
r
s
e
Y
e
s
t
c
w
t
a
a
o
l
v
p
e
e
r
r
f
e
Y
o
s
,
r
c
b
m
a
e
l
e
e
s
x
r
u
t
Y
r
e
n
.
e
s
i
o
n
r
s
a
l
i
0
s
t
t
o
s
e
t
“
0
”
n
r
n
h
u
w
o
a
f
u
n
n
n
l
y
“
c
0
t
w
0
1
i
o
h
6
”
n
e
n
i
b
y
“
s
0
s
t
h
0
1
e
e
t
i
m
i
s
p
e
s
r
e
r
e
s
Z
t
c
t
a
w
o
l
a
p
e
v
r
r
e
e
Z
f
s
,
o
c
b
r
m
a
e
e
r
u
x
Z
r
t
e
.
e
n
s
i
o
n
6
”
t
l
e
s
t
o
t
o
s
e
t
“
0
”
n
f
d
e
n
r
f
t
l
o
o
w
n
c
i
s
a
n
s
e
n
l
e
t
c
b
t
e
e
d
u
a
s
s
e
d
t
h
.
e
t
i
m
e
r
Z
c
o
u
n
t
s
o
u
r
c
e
,
f
u
c
i
o