Eeprom Data Write/Read - LG 27UL550 Service Manual

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