EM65570
68COM/ 98SEG 65K Color STN LCD Driver
7.20 EEPROM Function
The EM65570 provides EEPROM function to set the LCD operating voltage Vop. It can
also select the EEPROM operating mode. In EEPROM select register (Bank 5[AH]),
use (M1, M0) to select the operating mode for EEPROM.
(M1, M0) EEPROM operating mode
Delay time
≧ 10 uS
≧ 4 mS
≧ 4 mS
-
Needing VDD voltage
00
01
10
11
Read
Program
Erase
≧ 2.4V
≧ 2.8V
≧ 2.8V
-
Reserve
NOTE
When using EEPROM function, different operating modes need different VDD voltage
levels.
You can get the Vop calibration offset voltage by setting Vop calibration offset register
(Bank 5[BH &EH]).
CV5~CV0
011111
011110
…
Calibration Offset
+31
+30
…
000001
000000
100000
100001
…
+1
0
-32
-31
…
111111
-1
40 •
Product Specification (V1.0) 09.05.2005
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
