LG 27GL850 Service Manual page 24

LG ELECTRONICS INC. / MONITOR DIVISION
Establish : 2019/03/29
Revision : 1
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6.6.3 Use
2
Read E PROM's specific area as unit of 128(80h)‐byte. ( 84h )
6.6.4 EDID Write
EEPROM access by using DDC2B protocol
1‐Byte write
START A0
L : 0x00~0x7F
D : data
8‐byte write
START A0
L : 0x00,0x10,....0x70
6.6.5 EDID Read
DDC2B Command.(A0/A1)
A0
START
‐ 128 Byte transfer of EDID Buffer of MICOM
LM61C ADJUSTMENT SPECIFICATION
A L D
A STOP
A
A L A Data1 A ....
A 00 START A1
80
AC 0
80
AE 0
80
A Data8 A STOP
A Data1 . . . Data128
5‐Page 80~FF Read
6‐Page 0~7F Read
6‐Page 80~FF Read
7‐Page 0~7F Read
7‐Page 80~FF Read
A CS A STOP
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