APPENDIX
141
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
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
.
12m
s
0
.
56
m
s
2
.
24m
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