LG 22LK3 Series - Page 215

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APPENDIX
APPENDIX
COMMUNICATION PARAMETERS
■ Baud rate : 9600 bps
(
UART
)
■ Data length : 8 bits
■ Parity : None
■ Stop bit : 1 bit
■ Communication code : ASCII code
■ Use a crossed (reverse) cable.
Transmission / Receiving Protocol
Command Reference List
COMMAND
1
COMMAND
2
DATA
(Hexadecimal)
COMMAND
1
COMMAND
2
DATA
(Hexadecimal)
01. Power k a 00 to 01 14. Colour Temperature k u 00 to 64
02. Aspect Ratio k c Refer to p. 83 15. Treble k r 00 to 64
03. Screen Mute k d Refer to p. 83 16.
Bass k s 00 to 64
04. Volume Mute k e 00 to 01 17. Abnormal Status k z FF
05. Volume Control k f 00 to 64 18. Control Back Light m g Refer to p. 85
06. Contrast k g 00 to 64 19. Auto Configure j u 01
07. Brightness k h 00 to 64 20. Eneregy Saving j q Refer to p. 85
08. Colour k i 00 to 64 21. Tune Command m a Refer to p. 85
09. Tint k j 00 to 64 22. Channel Skip m b 00 to 01
10. Sharpness k k 00 to 64 23. Key m c Refer to p. 85
11. OSD Select k l 00 to 01 24. Input select (Main) x b Refer to p. 85
12. Remote Control Lock
/ Key Lock Mode
k m 00 to 01
13. Balance
k t 00 to 64
Transmission
*
[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 to 99.
When selecting Set ID ‘0’, every con-
nected TV is controlled. Set ID is indi-
cated as decimal (1 to 99) on menu and
as Hexa decimal (0x0 to 0x63) on trans-
mission/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)’
[Command1][Command2][ ][Set ID][ ][Data][Cr]
OK Acknowledgement
* The TV transmits ACK (acknowledgement) based on
this format 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.
[Command2][ ][Set ID][ ][OK][Data][x]
Error Acknowledgement
TV transmits ACK(acknowledgement) based on this
format 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.
[Command2][ ][Set ID][ ][NG][Data][x]