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LCD Controller Operation
18-10 LCD Controller
Figure 18−6 shows an example 2-mux LCD, pin-out, LCD-to-MSP430
connections, and the resulting segment mapping. This is only an example.
Segment mapping in a user’s application completely depends on the LCD
pin-out and on the MSP430-to-LCD connections.
Figure 18−6. 2−Mux LCD Example
28
d
f
A
B
G
0
3
A
B
G
0
3
3210 0
bh f
32103210
Sn+1 Sn
Parallel-
Serial
Conversion
COM
---- a----
ge d---- c----
bh f---- a----
ge d---- c----
bh f---- a----
ge d---- c----
bh f---- a----
ge d---- c----
bh f---- a----
ge d---- c----
bh f---- a----
ge d---- c----
bh f---- a----
ge---- c----
bh---- a----
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Digit 7
Digit 6
Digit 4
Digit 2
321
1/2 Digit 8
Digit 5
Digit 3
Digit 1
a
b
c
d
e
f
g
h
a
b
c
d
e
f
g
h
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
COM0
COM1
COM2
COM3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
1f
1h
1d
1e
2f
2h
2d
2e
3f
3h
3d
3e
4f
4h
4d
4e
5f
5h
5d
5e
6f
6h
6d
6e
7f
7h
7d
7e
8f
8h
8d
8e
COM0
PIN COM0
’430 Pins LCD Pinout
Pinout and Connections
NC
NC
DIGIT8 DIGIT1
1a
1b
1c
1g
2a
2b
2c
2g
3a
3b
3c
3g
4a
4b
4c
4g
5a
5b
5c
5g
6a
6b
6c
6g
7a
7b
7c
7g
8a
8b
8c
8g
COM1
COM1
LCD
Display Memory
Connections
ge d---- c----
n = 30
091h
092h
093h
094h
095h
096h
097h
098h
099h
09Ah
09Bh
09Ch
09Dh
09Eh
09Fh
MAB 0A0h