OM4085 Philips Semiconductors, OM4085 Datasheet - Page 20

• Manufacturer Part Number: OM4085
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 5 Definition of OM4085 commands
Table 6 LCD drive mode
1997 Feb 25
Mode set
Load data pointer
Device select
Bank select
Blink
Static (1 BP)
1 : 2 MUX (2 BP)
1 : 3 MUX (3 BP)
1 : 4 MUX (4 BP)
C
C
C
C
C
Universal LCD driver for low multiplex
rates
1
0
1
1
1
COMMAND/OPCODE
LCD DRIVE MODE
0
0
1
1
1
LP
P4
0
1
1
P3
E
0
1
0
P2
A2
B
A
0
BF1 BF0
M1
P1
A1
I
M0
P0
A0
O
see Table 10
see Table 11
see Table 12
see Table 13
see Table 14
see Table 15
see Table 6
see Table 7
see Table 8
see Table 9
OPTIONS
20
BIT M1
0
1
1
0
defines LCD drive mode
defines LCD bias configuration
defines display status; the possibility to disable
the display allows implementation of blinking
under external control
defines power dissipation mode
five bits of immediate data, bits P4 to P0, are
transferred to the data pointer to define one of
twenty-four display RAM addresses
three bits of immediate data, bits A0 to A2, are
transferred to the subaddress counter to define
one of eight hardware subaddresses
defines input bank selection (storage of arriving
display data)
defines output bank selection (retrieval of LCD
display data)
the BANK SELECT command has no effect in
1 : 3 and 1 : 4 multiplex drive modes
defines the blinking frequency
selects the blinking mode; normal operation
with frequency set by bits BF1 and BF0, or
blinking by alternation of display RAM banks.
Alternation blinking does not apply in 1 : 3 and
1 : 4 multiplex drive modes
DESCRIPTION
BIT M0
Product specification
1
0
1
0
OM4085