EM65570 ELAN Microelectronics Corp, EM65570 Datasheet - Page 49

• Manufacturer Part Number: EM65570
• Description: 68com / 98seg 65k Color Stn Lcd Driver
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.0) 09.05.2005
(This specification is subject to change without further notice)
7.20.2 Vop Calibration Offset Examples
„ Program
If the desired Vop calibration offset is +30, CV5~CV0 is set to 011110. The example
code is shown below:
WRITE
WRITE
WRITE
WRITE
WRITE
DELAY > 4 MS
WRITE
WRITE
WRITE
DELAY > 4 MS
WRITE
WRITE
WRITE
WRITE
WRITE
WRITE
DELAY
WRITE
WRITE
WRITE
DELAY
WRITE
„
„
#F4H
#71H
#6EH
#A1H
#52H
#56H
#A0H
#52H
#56H
#F0H
#91H
#F4H
#A1H
#50H
>10 uS
#56H
#A0H
#50H
>10 uS
#56H
When setting CV5~CV0, you must set CV5~CV4 (upper nibble registers) first,
then set CV3~CV0 (lower nibble registers), and then start to program.
The programming sequence of CV5~CV4 and CV3~CV0 is not restricted.
// set RE FLAG 100 Æ INSTRUCTION Bank 4
// set CV5~CV4=01
// set CV3~CV0=1110
// set NIB1~NIB0=01 Æ program CV5~CV4
// set EEPROM operating mode Æ programming;
// wait > 4 ms to finish programming
// set EEPROM mode Æ reserve (finish programming)
// set NIB1~NIB0=00 Æ program CV3~CV0
// set EEPROM operating mode Æ programming;
// wait > 4 ms to finish programming
// set EEPROM mode Æ reserve (finish programming)
// set RE FLAG 000 Æ INSTRUCTION Bank 0
// EM65570 reset
// set RE FLAG 100 Æ INSTRUCTION Bank 4
// set NIB1~NIB0=01 Æ read CV5~CV4
// set EEPROM operating mode Æ reading; read data
// wait >10 uS to finish reading
// set EEPROM mode Æ reserve (finish reading data
// set NIB1~NIB0=00 Æ read CV3~CV0
// set EEPROM operating mode Æ reading; read data
// wait >10 uS to finish reading
// set EEPROM mode Æ reserve (finish reading data
ROM power is from internal V0
EEPROM power is from internal V0
from EEPROM to the CV5~CV4 registers
from EEPROM to the CV5~CV4 registers)
from EEPROM to the CV3~CV0 registers
from EEPROM to the CV3~CV0 registers)
68COM/ 98SEG 65K Color STN LCD Driver
NOTE
EM65570
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