PCF8820U Philips Semiconductors, PCF8820U Datasheet - Page 20

• Manufacturer Part Number: PCF8820U
• Description: 67 x 101 Grey-scale/ECB colour dot matrix LCD driver
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Notes
1. Bit R/W is set in the slave address byte; bit RS is set in the control byte.
2. X = don’t care.
2000 Dec 07
Display part
HVGen command page (H
High voltage
generator
control
High voltage
generator
configuration
Temperature
control
Temperature
measurement
control
V
Grey-scale/colour command page (H
Grey-scale
register control
Grey-scale level
control
Special feature command page (H
Display off,
direct drive
mode
Oscillator setting
Row block
swapping
INSTRUCTION
LCD
67 101 Grey-scale/ECB colour dot matrix
LCD driver
control
CONTROL
RS
0
0
0
0
0
0
0
0
0
0
0
BITS
R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1
(1)
0
0
0
0
0
0
0
0
0
0
0
2
= 0, H
0
0
0
0
0
1
0
1
0
0
0
1
2
= 1, H
= 1, H
V
2
OP6
= 0, H
1
0
0
0
0
1
0
0
0
1
0
1
= 0)
= 0, H
V
GS
1
OP5
0
0
0
0
1
0
0
0
0
= 1, H
5
COMMAND BYTE
0
V
TRS BRS
GS
= 0)
OP4
0
0
0
1
0
0
0
0
0
= 1)
4
20
V
GS
OP3
0
0
1
0
0
0
0
1
3
V
DP
GS
TC
S
OP2
1
0
0
1
0
0
2
2
2
2
V
DOF
PRS
GR
GS
DP
TC
EC
S
OP1
0
0
1
1
1
1
1
V
DB0
HVE
GR
GS
DP
TC
DM
SM
OC
S
OP0
0
0
0
0
0
0
set display for partial screen
mode
set V
range and high voltage
generator on
set voltage multiplier factor
set temperature coefficient
start temperature
measurement
set V
0
select grey-scale register:
0
set grey-scale register value:
0
display off; voltage multiplier
in direct drive mode
select external clock; start
oscillator calibration
top row swap; bottom row
swap
V
GR
GS
LCDOUT
LCD
OP
DESCRIPTION
Product specification
register value:
63
3
127
PCF8820
programming