LG 27UL550 - EDID Write;Read

13 AC 0 6‐Page0~7FRead
14  80 6‐Page80~FFRead
15 AE 0 7‐Page0~7FRead
16  80 7‐Page80~FFRead
6.6.3Use
 ReadE
2
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
A
0
A L D
STOP
A
A

L:0x00~0x7F
D:data
 8‐bytewrite
START
A
0
A L A D
ata
A
…
.
A A
Data8
STOP

 L:0x00,0x10,….0x70
6.6.5EDIDRead
DDC2BCommand.(A0/ A1)
START
A0 A 00
START
A1 A Data1 . . . Data128 A CS A

STOP
‐128BytetransferofEDIDBuff erofMICOM
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