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参数资料
| 型号： | LC7465M |
| 元件分类： | 摇控器 |
| 英文描述： | INFRARED, TRANSMITTER IC, PDSO30 |
| 封装： | MFP-30 |
| 文件页数： | 6/8页 |
| 文件大小： | 259K |
| 代理商： | LC7465M |
LC7465M
No.3590–6/8
Table 5. Function code generation when SEL is HIGH
Note
= key press code
The function codes when SEL is HIGH, FCS1 is HIGH, FCS2 is LOW and FCS3 is HIGH are shown in the following
figure. For example, when key 45 is pressed, the generated function code is 9CH.
1
S
C
F2
S
C
F3
S
C
F
e
d
o
c
n
o
i
t
c
n
u
F
0
C
F1
C
F2
C
F3
C
F4
C
F5
C
F6
C
F7
C
F
W
O
LW
O
LW
O
L
–––0––10
H
G
I
HW
O
LW
O
L
–––1––00
W
O
LH
G
I
HW
O
L
–––0––10
H
G
I
HH
G
I
HW
O
L
–––1––10
W
O
LW
O
LH
G
I
H
–––0––01
H
G
I
HW
O
LH
G
I
H
–––1––01
W
O
LH
G
I
HH
G
I
H
–––0––11
H
G
I
HH
G
I
HH
G
I
H
–––1––11
Data check code
The eight-bit data check code (DC0 to DC7) is generated by adding the carry bits from the system code to the product
and function code bits. This code is used for error detection. The data check code is calculated using the following
equation.
DC=SC+GC0 to GC3+GC4 to GC7+FC0 to
FC3+FC4 to FC7
For example, when
SC=0H, GC=0B1H, FC=35H
DC=0H+1H+0BH+5H+3H=14H
Note that when the appropriate mask option is selected, function codes 97H, A7H, B7H, C7H, D7H, E7H and F7H can
also be generated by holding down key 8 and one of keys 16, 24, 32, 40, 48, 56 and 64.
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