LG 27UL500, Service Manual

Page: 24 / 34

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
-
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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
Delay 20m
A Data n . . . A Data 1 A CS STOP