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LCD_A Controller Operation
19-19LCD_A Controller
Figure 19−11 shows an example 4-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 depends on the LCD pin-out and on
the MSP430-to-LCD connections.
Figure 19−11.4-Mux LCD Example
ed
26
28
A
B
G
0
3
A
B
G
0
3
3210 0
3210 3210
Sn+1 Sn
COM
chbagf
24
22
20
18
16
14
12
10
8
6
4
2
0
Digit 9
Digit 7
Digit 4
Digit 2
321
Digit 5
Digit 3
Digit 1
Digit 6
Digit 8
Digit 10
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
ch dbaegf
Digit 14
Digit 12
Digit 11
Digit 13
Digit 15
a
b
c
d
e
f
g
h
a
b
c
d
e
f
g
h
DIGIT15 DIGIT1
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
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
1d
1h
2d
2h
3d
3h
4d
4h
5d
5h
6d
6h
7d
7h
8d
8h
9d
9h
10d
10h
11d
11h
12d
12h
13d
13h
14d
14h
15d
15h
COM0
PIN COM0
’430 Pins
LCD Pinout
Connections
1e
1c
2e
2c
3e
3c
4e
4c
5e
5c
6e
6c
7e
7c
8e
8c
9e
9c
10e
10c
11e
11c
12e
12c
13e
13c
14e
14c
15e
15c
COM1
COM1
1g
1b
2g
2b
3g
3b
4g
4b
5g
5b
6g
6b
7g
7b
8g
8b
9g
9b
10g
10b
11g
11b
12g
12b
13g
13b
14g
14b
15g
15b
COM2
COM2
1f
1a
2f
2a
3f
3a
4f
4a
5f
5a
6f
6a
7f
7a
8f
8a
9f
9a
10f
10a
11f
11a
12f
12a
13f
13a
14f
14a
15f
15a
COM3
COM3
Display Memory
LCD
Parallel-
Serial
Conversion
Pinout and Connections
edchbagf
n = 30
Digit 16
091h
092h
093h
094h
095h
096h
097h
098h
099h
09Ah
09Bh
09Ch
09Dh
09Eh
09Fh
MAB