EM65101
128COM/160SEG 16 Gray Scale Level LCD Driver
3) Erase
WRITE #F2H
WRITE #51H
WRITE #04H
// set RE FLAG 010 ꢁ INSTRUCTION Bank 2
// set NIB1~NIB0=01 ꢁ erase CV5~CV4
// set EEPROM operating mode ꢁ erasing;
EEPROM power is from internal V0
DELAY > 4 MS
WRITE #06H
WRITE #50H
WRITE #04H
// wait > 4 ms to finish erasing
// set EEPROM mode ꢁ reserve (finish erasing)
// set NIB1~NIB0=00 ꢁ erase CV3~CV0
// set EEPROM operating mode ꢁ erasing;
EEPROM power is from internal V0
DELAY > 4 MS
WRITE #06H
WRITE #F0H
WRITE #81H
WRITE #F2H
WRITE #51H
WRITE #00H
// wait > 4 ms to finish erasing
// set EEPROM mode ꢁ reserve (finish erasing)
// set RE FLAG 000 ꢁ INSTRUCTION Bank 0
// EM65101 reset
// set RE FLAG 010 ꢁ INSTRUCTION Bank 2
// set NIB1~NIB0=01 ꢁ read CV5~CV4
// set EEPROM operating mode ꢁ reading;
read data from EEPROM to the CV5~CV4 registers
DELAY >10 uS
WRITE #06H
// wait >10 uS to finish reading
// set EEPROM mode ꢁreserve (finish reading data
from EEPROM to CV5~CV4 register)
WRITE #50H
WRITE #00H
// set NIB1~NIB0=00 ꢁ read CV3~CV0
// set EEPROM operating mode ꢁreading; read data
from EEPROM to the CV3~CV0 registers
DELAY >10 uS
WRITE #06H
// wait >10 uS to finish reading
// set EEPROM mode ꢁreserve (finish reading data
from EEPROM to CV3~CV0 register)
NOTE
CV5~CV0 should be equal to 1111 after erasing
32 •
Product Specification (V0.4) 08.15.2005
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
