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參數(shù)資料
| 型號： | DS80C323ENG |
| 英文描述： | Microprocessor |
| 中文描述： | 微處理器 |
| 文件頁數(shù)： | 9/38頁 |
| 文件大?。?/td> | 434K |
| 代理商： | DS80C323ENG |
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DS80C320/DS80C323
110196 9/38
Bit Manipulation
Instructions:
CLR C
CLR bit
SETB C
SETB bit
CPL C
CPL bit
1
2
1
2
1
2
4
8
4
8
4
8
ANL C, bit
ANL C, bit
ORL C, bit
ORL C, bit
MOV C, bit
MOV bit, C
2
2
2
2
2
2
8
8
8
8
8
8
Program Branching
Instructions:
ACALL addr 11
LCALL addr 16
RET
RETI
AJMP addr 11
LJMP addr 16
SJMP rel
JMP @A+DPTR
JZ rel
JNZ rel
DJNZ Rn, rel
DJNZ direct, rel
2
3
1
1
2
3
2
1
2
2
2
3
12
16
16
16
12
16
12
12
12
12
12
16
CJNE A, direct, rel
CJNE A, #data, rel
CJNE Rn, #data, rel
CJNE Ri, #data, rel
NOP
JC rel
JNC rel
JB bit, rel
JNB bit, rel
JBC bit, rel
3
3
3
3
1
2
2
3
3
3
16
16
16
16
4
12
12
16
16
16
The table above shows the speed for each class of
instruction. Note that many of the instructions have mul-
tiple opcodes. There are 255 opcodes for 111 instruc-
tions. Of the 255 opcodes, 159 are three times faster
than the original 80C32. While a system that empha-
sizes those instructions will see the most improvement,
the large total number that receive a 3 to 1 improvement
assure a dramatic speed increase for any system. The
speed improvement summary is provided below.
SPEED ADVANTAGE SUMMARY
#Opcodes
Speed Improvement
159
3.0 x
51
1.5 x
43
2.0 x
2
2.4 x
255
Average: 2.5
MEMORY ACCESS
The DS80C320/DS80C323 contains no on–chip ROM
and 256 bytes of scratchpad RAM. Off–chip memory is
accessed using the multiplexed address/data bus on
P0 and the MSB address on P2. A typical memory con-
nection is shown in Figure 3. Timing diagrams are pro-
vided in the Electrical Specifications. Program memory
(ROM) is accessed at a fixed rate determined by the
crystal frequency and the actual instructions. As men-
tioned above, an instruction cycle requires 4 clocks.
Data memory (RAM) is accessed according to a vari-
able speed MOVX instruction as described below.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS80C323MCG | Microprocessor |
| DS80C323QCG | Microprocessor |
| DS80C390 | Dual CAN High-Speed Microprocessor |
| DS80C390-QNR | Dual CAN High-Speed Microprocessor |
| DS80C390-FCR | Dual CAN High-Speed Microprocessor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS80C323-ENG | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C323-ENL | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C323-ENR | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C323-FCD | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C323-FCG | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
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