PCF8820U Philips Semiconductors, PCF8820U Datasheet - Page 39

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

Philips Semiconductors
2000 Dec 07
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STEP
67 101 Grey-scale/ECB colour dot matrix
LCD driver
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1
1
0
1
1
1
0
1
1
1
0
1
0
1
0
1
0
1
0
1
0
0
0
1
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1
0
0
0
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0
0
0
0
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0
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0
SERIAL BUS BYTE
0
0
0
0
1
0
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1
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0
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LCD
grey-scale/colour command page:
set grey-scale to 20
(GS
control byte: Co = 1, RS = 0
grey-scale/colour command page:
select grey-scale register 2
(GR
control byte: Co = 1, RS = 0
grey-scale/colour command page:
set grey-scale register 2 to 40
(GS
control byte: Co = 1, RS = 0
grey-scale/colour command page:
select grey-scale register 3
(GR
control byte: Co = 1, RS = 0
grey-scale/colour command page:
set grey-scale register 3 to 63
(GS
control byte: Co = 1, RS = 0
H
select function and RAM command
page (H
control byte: Co = 1, RS = 0
function and RAM command page:
select HVGen command page
(H
control byte: Co = 1, RS = 0
HVGen command page: enable
HVGen (HVE = 1) and select LOW
V
(PRS = 0)
control byte: Co = 1, RS = 0
H
select function and RAM command
page (H
control byte: Co = 1, RS = 0
function and RAM command page:
select normal operation (PD = 0)
and vertical address mode (V = 1)
control byte: Co = 1, RS = 0
function and RAM command page:
select HVGen command page
(H
LCD
2
2
2
2
to H
to H
to H
to H
5
5
5
1
1
programming range
to GS
to GS
to GS
to GR
to GR
0
0
2
0
2
0
independent command:
independent command:
to H
to H
= 010)
= 010)
OPERATION
0
0
0
0
0
= 010100)
= 101000)
= 111111)
= 10)
= 11)
0
0
= 000)
= 000)
Product specification
PCF8820