Intel MCS 51 User Manual

i~.
83C152 HARDWARE DESCRIPTION
Data Memory Map (bite):
. . .
Byte
BITADDRESSES
Address
(MSB)
(LSB)
020H 07
08 05 04 03
02
01 00
021H OF
OE OD
Oc
OB
OA 09 08
022H 17 16
15
14 13
12
11
10
023H
024H
025H
026H
027H
028H
029H
02AH
02BH
02CH
02DH
02EH
02FH
I 27 I 26 I 25
I 24 I 23 1 22 I 21 I 2(I I
3F
3E 3D
3C
3B
3A 39 38
47
46 45
44
43
42 41 40
4F 4E 4D 4C
46
4A 49
48
57
56 55 54 53
52 51
50
5F 5E 5D 5C
5B
5A 59
58
67 66 65 64 63
62
61 60
6F
6E
6D 6C
6B
6A 69
68
77
76 75
74
73
72
71 70
7F
7E
7D 7C
7B
7A 79 78
Figure 2.3A. Bit Addresses
Byte
BIT ADDRESSES
Address
(MSB)
O-SB)
080H
088H
098H
OAOH
OA8H
OBOH
OB8H
OCOH
OC6H
ODOH
OD8H
OEOH
OE8H
OFOH
OF8H
8F 6E
8D
8C 8B 8A 89 88
97 96 95 94 93 92
91 90
9F 9E
9D
8C
I
96 9A 99 98
A7
A6 A5 A4 A3
A2
Al
AO
B? B6
B5
B4 B3 B2 B1 BO
BC BB
BA
B9 B8
C7
C6 C5 C4
C3
C2
cl
co
CD
cc CB CA
C9 C6
D7 D6 D5
D4 D3 D2
D1 DO
DF
DE
DD
Dc DB
DA
D9 D8
E7
E6
E5
E4
E3
E2
El EO
EF
EE ED
EC EB
EA E9 E8
(Po)
(TCON)
(Pi)
(SCON)
(P2)
(IE)
(P3)
(1P)
(P4)
(IEN1)
(Psw)
(TSTAT)
(A)
(RSTAT)
(B)
FD
FC I FB
FA
F9
F8
1
(IPN1)
Figure 2.36. Bit Addresses
7-9

Intel MCS 51 Specifications

General

Brand	Intel
Model	MCS 51
Category	Microcontrollers
Language	English