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参数资料
| 型号： | C540U |
| 厂商： | SIEMENS AG |
| 元件分类： | 8位微控制器 |
| 英文描述： | 8-Bit CMOS Microcontroller |
| 中文描述： | 8位CMOS微控制器 |
| 文件页数： | 13/65页 |
| 文件大小： | 427K |
| 代理商： | C540U |
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Semiconductor Group
13
1997-10-01
C540U
C541U
CPU
The C540U/C541U is efficient both as a controller and as an arithmetic processor. It has extensive
facilities for binary and BCD arithmetic and excels in its bit-handling capabilities. Efficient use of
program memory results from an instruction set consisting of 44 % one-byte, 41 % two-byte, and
15% three- byte instructions. With a 12 MHz crystal, 58% of the instructions are executed in 500ns.
Special Function Register PSW (Address D0H)
Reset Value : 00H
Bit
Function
CY
Carry Flag
Used by arithmetic instruction.
AC
Auxiliary Carry Flag
Used by instructions which execute BCD operations.
F0
General Purpose Flag
RS1
RS0
Register Bank Select Control Bits
These bits are used to select one of the four register banks.
RS1
RS0
Function
OV
Overflow Flag
Used by arithmetic instruction.
F1
General Purpose Flag
P
Parity Flag
Set/cleared by hardware after each instruction to indicate an odd/even
number of "one" bits in the accumulator, i.e. even parity.
CY
AC
F0
RS1
RS0
OV
F1
P
D0H
PSW
D7H
D6H
D5H
D4H
D3H
D2H
D1H
D0H
Bit No.
MSB
LSB
0
0
Bank 0 selected, data address 00H-07H
Bank 1 selected, data address 08H-0FH
Bank 2 selected, data address 10H-17H
Bank 3 selected, data address 18H-1FH
0
1
1
0
1
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| C540U_1 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C541 | 制造商:POWERBOX 制造商全称:Powerbox 功能描述:250 WATTS (AC) DC/D CSINGLE OUTPUT |
| C5410 | 制造商:VECTRON 制造商全称:Vectron International, Inc 功能描述:Base Stations Test Equipment Switching |
| C54105-000 | 制造商:TE Connectivity 功能描述:VARISTOR 27V 1KA DISC 14MM 制造商:TE Connectivity 功能描述:VARISTOR 27VDC 14MM 10% LEADED 制造商:TE CONNECTIVITY RAYCHEM-POLYSWITCH 功能描述:Var MOV 17VAC 22VDC 1000A 27V Thru-Hole Bulk |
| C541-06 | 制造商:Molex 功能描述: |
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