隆 Semiconductor
Diagram of Internal Data Memory (RAM)
0FFH
80H
7FH
30H
2FH
2EH
2DH
2CH
2BH
2AH
29H
28H
27H
26H
25H
24H
23H
22H
21H
20H
1FH
Bank 3
18H
17H
Bank 2
10H
0FH
Bank 1
08H
07H
Bank 0
00H
0
8
7
16
15
24
23
7F
77
6F
67
5F
57
4F
47
3F
37
2F
27
1F
17
0F
07
7E
76
6E
66
5E
56
4E
46
3E
36
2E
26
1E
16
0E
06
7D
75
6D
65
5D
55
4D
45
3D
35
2D
25
1D
15
0D
05
MSM80C154S/83C154S
USER DATA RAM
USER DATA RAM
7C
74
6C
64
5C
54
4C
44
3C
34
2C
24
1C
14
0C
04
7B
73
6B
63
5B
53
4B
43
3B
33
2B
23
1B
13
0B
03
7A
72
6A
62
5A
52
4A
42
3A
32
2A
22
1A
12
0A
02
79
71
69
61
59
51
49
41
39
31
29
21
19
11
09
01
78
70
68
60
58
50
48
40
38
30
28
20
18
10
08
00
255
128
127
48
47
46
45
44
43
41
40
39
38
37
36
35
34
33
32
REGISTERS 0-7 DIRIECT ADDRESSING
31
BIT ADDRESSING
42
22/40
REGISTER 0, 1, INDIRECT ADDRESSING
DATA ADDRESSING