LG 22LH20D User Manual
133
APPENDIX
Transmission / Receiving Protocol
Command Reference List
T
Trraan
nssm
miissssiio
on
n
[Command 1] : First command to control the set.
(j,k,m or x)
[Command 2] : Second command to control the set.
[Set ID] : You can adjust the set ID to choose desired TV ID
number in Setup menu. Adjustment range is 1
~
99.
When selecting Set ID ‘0’, every connected TV is
controlled. Set ID is indicated as decimal (1
~
99)
on menu and as Hexa decimal (0x0
~
0x63) on
transmission/receiving protocol.
[DATA] : To transmit command data.
Transmit ‘FF’ data to read status of command.
[Cr] : Carriage Return
ASCII code ‘0x0D’
[ ] : ASCII code ‘space (0x20)’
O
OK
K A
Acckkn
no
ow
wlleed
dg
geem
meen
ntt
The TV transmits ACK (acknowledgement) based on this for-
mat when receiving normal data. At this time, if the data is
data read mode, it indicates present status data. If the data is
data write mode, it returns the data of the PC computer.
E
Errrro
orr A
Acckkn
no
ow
wlleed
dg
geem
meen
ntt
TV transmits ACK(acknowledgement) based on this format
when receiving abnormal data form non-viable functions or
communication errors.
when receiving abnormal data form non-viable functions or
communication errors.
[Command 2] : use as command.
[Set ID]: use the small character, if set ID is 10, TV will send the ‘0’, ‘a’
[Data]: use the small character, if data is 0xab, TV will send the ‘a’, ‘b’.
[NG]: use the large character.
[[C
Co
om
mm
maannd
d1
1]][[C
Co
om
mm
maannd
d2
2]][[ ]][[SSeett IID
D]][[ ]][[D
Daattaa]][[C
Crr]]
[[C
Co
om
mm
maannd
d2
2]][[ ]][[SSeett IID
D]][[ ]][[O
OK
K]][[D
Daattaa]][[xx]]
[[C
Co
om
mm
maannd
d2
2]][[ ]][[SSeett IID
D]][[ ]][[N
NG
G]][[D
Daattaa]][[xx]]
C
CO
OM
MM
MA
AN
ND
D1
1 C
CO
OM
MM
MA
AN
ND
D2
2
DATA
(Hexadecimal)
C
CO
OM
MM
MA
AN
ND
D1
1 C
CO
OM
MM
MA
AN
ND
D2
2
DATA
(Hexadecimal)
01. Power
k
a
00 ~ 01
02. Aspect Ratio
k
c
Refer to p.134
03. Screen Mute
k
d
Refer to p.134
04. Volume Mute
k
e
00 ~ 01
05. Volume Control
k
f
00 ~ 64
06. Contrast
k
g
00 ~ 64
07. Brightness
k
h
00 ~ 64
08. Colour
k
i
00 ~ 64
09. Tint
k
j
00 ~ 64
10. Sharpness
k
k
00 ~ 64
11. OSD Select
k
l
00 ~ 01
12. Remote Control Lock
00 ~ 01
/Key Lock Mode
k
m
13. Balance
k
t
00 ~ 64
14. Colour Temperature
k
u
00 ~ 02
15. Abnormal Status
k
z
FF
16. Auto Configure
j
u
01
17. Channel Add/Del
m
b
00 ~ 01
18. Key
m
c
Key Code
19. Input select (Main)
x
b
Refer to p.136
20. Control Back Light
m
g
00 ~ 64
21. Energy Saving
j
q
00 ~ 05
22. Tune Command
m
a
Refer to p.137
Communication Parameters
A
Baud rate : 9600 bps (UART)
A
Data length : 8 bits
A
Parity : None
A
Stop bit : 1 bit
A
Communication code : ASCII code
A
Use a crossed (reverse) cable.