EM65571 ELAN Microelectronics Corp, EM65571 Datasheet - Page 63
EM65571
Manufacturer Part Number
EM65571
Description
130com / 128seg 65k Color Stn Lcd Driver
Manufacturer
ELAN Microelectronics Corp
Datasheet
1.EM65571.pdf
(118 pages)
- Current page: 63 of 118
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Product Specification (V1.0) 08.04.2005
(This specification is subject to change without further notice)
(M1, M0) set 01
(M1, M0) set 11
Delay 10*N ms
WR Start :
Select CV
Vop offset
to get the
WR End:
Voltage
correct
The flow charts for the program, read, and erase EEPROM to get correct Vop offset voltage
are shown as follows:
For example, the desired Vop calibration offset is +7, CV4~CV1 is set to 0111, the example
code is shown below:
WRITE #F5H
WRITE #B7H
WRITE #A4H // set EEPROM operating mode o programming ; EEPROM power is from
DELAY 10*N MS // wait for 10*N ms to finish programming
WRITE #ACH
WRITE #F0H
WRITE #B1H
WRITE #F5H
Program
Program
(M1, M0) set 00
(M1, M0) set 11
Delay < 10 us
Vop offset
RD Start :
RD End:
Get the
Voltage
correct
Reset
the internal V0 ; oscillator frequency is the initially set value
// set RE FLAG 101 o INSTRUCTION Bank 5
// set RE FLAG 000 o INSTRUCTION Bank 0
// set RE FLAG 101 o INSTRUCTION Bank 5
// set CV4~CV1=0111
// EM65571 reset
// set EEPROM mode o reserve (finish programming)
Read
(M1, M0) set 00
(M1, M0) set 11
Delay < 10
RD Start :
CV4~CV1
EEPROM
RD End:
Data to
Read
130COM/128SEG 65K Color STN LCD Driver
Erase
Delay 10xN ms
ERASE Start :
ERASE End:
(M1, M0)
(M1, M0)
set 10
set 11
Reset
CV4~CV1=1111
Delay<10 µs
RD Start :
(M1, M0)
RD End :
(M1, M0)
set 00
set 11
EM65571
x 57
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