PCF85321 NXP [NXP Semiconductors], PCF85321 Datasheet - Page 16

• Manufacturer Part Number: PCF85321
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: NXP [NXP Semiconductors]

Fig 10. Relationships between LCD layout, drive mode, display RAM filling order and display data transmitted over the I
x = data bit unchanged
drive mode
static
1:2
multiplex
1:3
multiplex
1:4
multiplex
S
S
S
S
S
S
S
S
S
S
S
n+1
n+3
n+5
n+6
n+2
n+3
n+2
n+4
n+2
n+1
n+1
LCD segments
S
S
n
n
e
e
e
e
f
f
f
f
d
d
d
d
g
g
g
g
a
a
a
a
c
c
c
c
b
b
b
b
S
S
S
S
n
n+1
n+7
n
DP
DP
DP
DP
BP0
BP0
BP1
BP1
BP0
BP0
LCD backplanes
BP1
BP2
BP2
BP3
bit/
BP
bit/
BP
bit/
BP
bit/
BP
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
DP
DP
n
c
x
x
x
n
a
b
x
x
n
b
c
x
n
a
c
b
n + 1
n + 1
n + 1
n + 1
b
x
x
x
g
x
x
a
d
g
x
f
e
g
d
f
display RAM filling order
n + 2
n + 2
n + 2
e
c
x
x
a
x
x
x
e
x
x
f
n + 3
n + 3
DP
f
x
x
x
d
x
x
n + 4
g
x
x
x
n + 5
e
x
x
x
n + 6
d
x
x
x
n + 7
DP
x
x
x
transmitted display byte
2
MSB
MSB
MSB
MSB
c b a f
a b f
b DP c a d g f
a c b DP f
C-bus
g e c d DP
g e d DP
e g d
001aag281
LSB
LSB
LSB
LSB
e