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APPENDIX
107
IR CODES
■
Configuration of frame
1st frame
Repeat frame
■
Lead code
■
Repeat code
■
BBiitt ddeessccrriippttiioonn
■
FFrraammee iinntteerrvvaall:: TTff
The waveform is transmitted as long as a key is depressed.
C0
C1
C2
C3
C4
C5
C6
C
7
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
L
ead
code
L
o
w
custo
m
code
Hi
g
h custom cod
e
D
ata
code
D
ata
code
Re
p
eat cod
e
Tf
4.
5
m
s
9
ms
2.2
5
ms
9
ms
0
.
55
ms
0
.
56
m
s
1
.
12 m
s
0
.
56
m
s
2
.
24 m
s
Tf
Tf
Tf=1
08
ms
@
455KH
z
Bit ”0” Bit ”1”
1. How to Connect
■
Connect your wired remote control to the Remote Control port on the TV.
2. Remote Control IR Codes
■
Output waveform
Single pulse, modulated with 37.917KHz signal at 455KHz
T1
T
c
Carrier frequency
FCAR = 1/TC = fOSC/12
Duty ratio = T1/TC = 1/3
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