LG 15LS1RA Service Manual page 12

5.2. EEPROM DATA READ
(1) Signal Table
ST ART 6E A 50 A 84 A
Delay 100ms
ST ART 6F A D1 A
(2) Command Set
Adjustment Contents CMD(hex)
EEPROM READ E7
Purpose : To read the appointment Address of E2PROM by
128(80h)-byte
5.3. E 2 PROM Data Write
(1) Signal Table
ST ART 6E A 50 A
Data_1 A . . .
LEN : 84h+Bytes
CMD : 8Eh
ADH : E PROM Slave Address(A0,A2,A4,A6,A8),
2
Not 00h(Reserved by BufferToEEPROM)
ADL : E2PROM Sub Address(00~FF)
Data : Write data
(2) Command Set
No. Adjustment contents
1 EEPROM WRITE
2
<Purpose>
1) EDID write : 16-byte by 16-byte, 8 order (128-byte) write
(TO "00 – 7F" of "EEPROM Page A4")
2)FOS Default write : 16-mode data (HFh, HFl, VF, STD,
HP, VP, Clk, ClkPh, PhFine) write
3) Random Data write : write the appointment Address of
E2PROM
5.4. VRAM Read
1) Send CMD(70h) to read Video RAM value from MICOM
And save its value to 128-Bytes Buffer(Common Buffer for
the use of EDID).
ST ART 6F A Data1
2) Delay 500ms(Time to wait and read vZideo RAM from
MICOM)
3) Be transmitted the contents of MICOM's 128-bytes Buffer to
PC.(128th Data is the CheckSum of 127-bytes data : That's
OK if the value of adding 128-bytes Data is Zero)
ST ART 6E A 50 A 84 A
03 A CMD A A DH A A DL A
128 Bytes
ADR(hex) ADL(hex)
A0 0 0-Page 0~7F Read
80 0-Page 80~FF Read
A2 0 1-Page 0~7F Read
80 1-Page 80~FF Read
A4 0 2-Page 0~7F Read
80 2-Page 80~FF Read
A6 0 3-Page 0~7F Read
80 3-Page 80~FF Read
84+ n A 03 A CMD A A DH A A DL A
Data_n A CS A ST OP
CMD(hex) LEN
E8 94
84+n
. . . Data12 A CS NA
ST OP
03 A 70 A 00 A 00 A
ST OP
CS A
Dn A ST OP
Details
Details
16-Byte Write
n-byte Write
CS A ST OP
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