LG 27UL550 - EEPROM Data Write;Read

6.5.EEPROMDataWrite
6.5.1SiganlTABLE
START
6E
A
50
A
84
+
n
A
03
A
CMD
A
ADH
A
A
ADL


- 24 -
Copyright © 2019 LG Electronics Inc. All rights reserved.
Only training and service purposes

 LEN:84h+Bytes
 CMD:E8h
 ADH:E
2
PROMSlaveAddress(A0,A2,A4,A6,A8,AA,AC,AE),Not00h(ReservedbyBufferToEEPROM)
 ADL:E
2
PROMSubAddress(00~FF)
 Data:Writedata
 Delay:20ms

6.5.2.CommandSet
No. Adjustmentcontents CMD(hex) LEN Explanation
1 EEPROMWRITE E8 94 16‐ByteWrite
2 (84+n) n‐byteWrite
*Use
 FOSDefaultwrite:
<14modedata>write
SyncFlags,HPeriodH,HPeriodL,VtotalH,VtotalL, SrcHTotalH,SrcHTotalL
SrcHStartH,SrcHStartL,SrcVStartH,SrcVStartL,HsyncPhase
 TemporaryDatawrite:WritetoparticularaddressofEEPROM.

6.6E
2
PROMDataRead
6.6.1SignalTABLE




                                  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐

128Bytes
6.6.2COMMANDSET
No. Adjustmentcontents CMD(hex) ADH(hex) ADL(hex) Explanation
1 EEPROMREAD E7 A0 0 0‐Page0~7FRead
2  80 0‐Page80~FFRead
3 A2 0 1‐Page0~7FRead
4  80 1‐Page80~FFRead
5 A4 0 2‐Page0~7FRead
6  80 2‐Page80~FFRead
7 A6 0 3‐Page0~7FRead
8  80 3‐Page80~FFRead
9 A8 0 4‐Page0~7FRead
10  80 4‐Page80~FFRead
11 AA 0 5‐Page0~7FRead
12  80 5‐Page80~FFRead
Delay 150ms
CS
A
ADL
A
A
START
84
ADH
CMD
03
6E
50
A
A
A
Dn
A
A
A
START
STOP
6F
D1
A
A
STOP
Dela
y
20m
A
Data n
...
A
Data 1
A
CS
STOP