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参数资料
| 型号： | AT87251G2D-SLSUM |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | B/16-BIT MICROCONTROLLER WITH SERIAL COMMUNICATION INTERFACES |
| 中文描述： | 16-BIT, OTPROM, 24 MHz, MICROCONTROLLER, PQCC44 |
| 封装： | GREEN, PLASTIC, LCC-44 |
| 文件页数： | 24/76页 |
| 文件大小： | 1175K |
| 代理商： | AT87251G2D-SLSUM |
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24
AT/TSC8x251G2D
4135D–8051–08/05
Size and Execution Time
for Instruction Families
Table 20.
Summary of Add and Subtract Instructions
Notes:
1. A shaded cell denotes an instruction in the C51 Architecture.
2. If this instruction addresses an I/O Port (Px, x = 0-3), add 1 to the number of states.
Add 2 if it addresses a Peripheral SFR.
3. If this instruction addresses external memory location, add N+2 to the number of
states (N: number of wait states).
AddADD <dest>, <src>dest opnd
←
dest opnd + src opnd
SubtractSUB <dest>, <src>dest opnd
←
dest opnd - src opnd
Add with CarryADDC <dest>, <src>(A)
←
(A) + src opnd + (CY)
Subtract with BorrowSUBB <dest>, <src>(A)
←
(A) - src opnd - (CY)
Mnemonic
<dest>,
<src>
(1)
Comments
Binary Mode
Source Mode
Bytes
States
Bytes
States
ADD
A, Rn
Register to ACC
1
1
2
2
A, dir8
Direct address to ACC
2
1
(2)
2
1
(2)
A, at Ri
Indirect address to ACC
1
2
2
3
A, #data
Immediate data to ACC
2
1
2
1
ADD/SUB
Rmd, Rms
Byte register to/from byte register
3
2
2
1
WRjd, WRjs
Word register to/from word register
3
3
2
2
DRkd, DRks
Dword register to/from dword register
3
5
2
4
Rm, #data
Immediate 8-bit data to/from byte
register
4
3
3
2
WRj, #data16
Immediate 16-bit data to/from word
register
5
4
4
3
DRk,
#0data16
16-bit unsigned immediate data
to/from dword register
5
6
4
5
Rm, dir8
Direct address (on-chip RAM or SFR)
to/from byte register
4
3
(2)
3
2
(2)
WRj, dir8
Direct address (on-chip RAM or SFR)
to/from word register
4
4
3
3
Rm, dir16
Direct address (64K) to/from byte
register
5
3
(3)
4
2
(3)
WRj, dir16
Direct address (64K) to/from word
register
5
4
(4)
4
3
(4)
Rm, at WRj
Indirect address (64K) to/from byte
register
4
3
(3)
3
2
(3)
Rm, at DRk
Indirect address (16M) to/from byte
register
4
4
(3)
3
3
(3)
ADDC/SU
BB
A, Rn
Register to/from ACC with carry
1
1
2
2
A, dir8
Direct address (on-chip RAM or SFR)
to/from ACC with carry
2
1
(2)
2
1
(2)
A, at Ri
Indirect address to/from ACC with
carry
1
2
2
3
A, #data
Immediate data to/from ACC with
carry
2
1
2
1
相关PDF资料 |
PDF描述 |
|---|---|
| AT80251G2D | B/16-BIT MICROCONTROLLER WITH SERIAL COMMUNICATION INTERFACES |
| AT80251G2D-3CSUM | B/16-BIT MICROCONTROLLER WITH SERIAL COMMUNICATION INTERFACES |
| AT80251G2D-RLTUL | B/16-BIT MICROCONTROLLER WITH SERIAL COMMUNICATION INTERFACES |
| AT80251G2D-RLTUM | CONNECTORS, INDUSTRIAL; SERIES:97/MS; CONNECTOR TYPE:CIRCULAR; ER 3C 3#8 SKT RECP BOX |
| AT80251G2D-SLSUL | ER 3C 3#8 SKT RECP BOX |
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