參數(shù)資料
型號(hào)： uPSD3233
廠商： 意法半導(dǎo)體
英文描述： Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
中文描述： 閃存可編程系統(tǒng)器件與8032微控制器內(nèi)核（嵌入高速“8032微控制器核”的閃存型可編程系統(tǒng)器）
文件頁數(shù)： 16/164頁
文件大?。?/td> 1133K
代理商： UPSD3233
μ
PSD3200 FAMILY
16/164
DRAFT(Thursday 20 June 2002, 13:15).
teen addressin theSFRs space are both-byte and
bit-addressable. The bit-addressable SFRs are
those whose address ends in 0h and 8h. The bit
addresses in this area are 80h to FFh.
Table 3. RAM Address
Addressing Modes
The addressing modes in
μ
PSD3200 Family in-
struction set are as follows
I
Direct addressing
I
Indirect addressing
I
Register addressing
I
Register-specific addressing
I
Immediate constants addressing
I
Indexed addressing
Figure 10. Direct Addressing
(1) Direct addressing.
In a direct addressing the
operand is specifiedby an 8-bitaddress field inthe
instruction. Only internal Data RAM and SFRs
(80~FFH RAM) can be directly addressed.
Example:
mov A, 3EH ; A <----- RAM[3E]
Figure 11. Indirect Addressing
(2) Indirect addressing.
In indirect addressing
the instruction specifies a register which contains
the address of the operand. Both internal and ex-
ternal RAM can be indirectly addressed. The ad-
dress register for 8-bit addresses can be R0or R1
of the selected register bank, or the Stack Pointer.
The address register for 16-bit addresses canonly
be the 16-bit “data pointer” register, DPTR.
Example:
mov @R1, 40H ;[R1] <-----[40 H]
(3) Register addressing.
The
containing registers R0 through R7, can be ac-
register
banks,
Byte Address
(in Hexadecimal)
Byte Address
(in Decimal)
↓
Bit Address (in Hexadecimal)
↓
FFh
255
msb
lsb
2Fh
7F
7E
7D
7C
7B
7A
79
78
47
2Eh
77
76
75
74
73
72
71
70
46
2Dh
6F
6E
6D
6C
6B
6A
69
68
45
2Ch
67
66
65
64
63
62
61
60
44
2Bh
5F
5E
5D
5C
5B
5A
59
58
43
2Ah
57
56
55
54
53
52
51
50
42
29h
4F
4E
4D
4C
4B
4A
49
48
41
28h
47
46
45
44
43
42
41
40
40
27h
3F
3E
3D
3C
3B
3A
39
38
39
26h
37
36
35
34
33
32
31
30
38
25h
2F
2E
2D
2C
2B
2A
29
28
37
24h
27
26
25
24
23
22
21
20
36
23h
1F
1E
1D
1C
1B
1A
19
18
35
22h
17
16
15
14
13
12
11
10
34
21h
0F
0E
0D
0C
0B
0A
09
08
33
20h
07
06
05
04
03
02
01
00
32
1Fh
Bank 3
31
18h
24
17h
Bank 2
23
10h
16
0Fh
Bank 1
15
08h
8
07h
Bank 0
7
00h
0
AI06641
3Eh
Program Memory
04
A
AI06642
R1
40h
Program Memory
55
66
相關(guān)PDF資料
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