SAMHOP Microelectronics Corp.
VFD CONTROLLER / DRIVER
SM6311
Display RAM Address and Display Mode
The display RAM stores the data transmitted from an external device to the SM6311 through the serial
interface, and is assigned addresses as follows, in units of 8 bits :
Seg
1
Seg
4
00 H
L
03 H
L
06 H
L
09 H
L
0C H
L
0F H
L
12 H
L
15 H
L
18 H
L
1B H
L
1E H
L
21 H
L
24 H
L
27 H
L
2A H
L
2D H
L
b
0
XX H
L
b
3
b
4
Seg
8
00 H
U
03 H
U
06 H
U
09 H
U
0C H
U
0F H
U
12 H
U
15 H
U
18 H
U
1B H
U
1E H
U
21 H
U
24 H
U
27 H
U
2A H
U
2D H
U
b
7
XX H
U
Seg
12
01 H
L
04 H
L
07 H
L
0A H
L
0D H
L
10 H
L
13 H
L
16 H
L
19 H
L
1C H
L
1F H
L
22 H
L
25 H
L
28 H
L
2B H
L
2E H
L
Seg
16
01 H
U
04 H
U
07 H
U
0A H
U
0D H
U
10 H
U
13 H
U
16 H
U
19 H
U
1C H
U
1F H
U
22 H
U
25 H
U
28 H
U
2B H
U
2E H
U
Seg
20
02 H
L
05 H
L
08 H
L
0B H
L
0E H
L
11 H
L
14 H
L
17 H
L
1A H
L
1D H
L
20 H
L
23 H
L
26 H
L
29 H
L
2C H
L
2F H
L
DIG
1
DIG
2
DIG
3
DIG
4
DIG
5
DIG
6
DIG
7
DIG
8
DIG
9
DIG
10
DIG
11
DIG
12
DIG
13
DIG
14
DIG
15
DIG
16
Lower 4 bits Higher 4 bits
Only the lower 4 bits of the addresses assigned to Seg
17
through Seg
20
are valid, and the higher 4
bits are ignored.
Page 4
V.1.2, MAY,2003
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
