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參數(shù)資料
| 型號： | EM73200 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 4-Bit Micro-Controller for General Purpose Product(用于家用電器，消費類產(chǎn)品和玩具控制器的工作電壓4.5V-5.5V，2.7V-3.3V的4位微控制器) |
| 中文描述： | 4位微產(chǎn)品的通用控制器（用于家用電器，消費類產(chǎn)品和玩具控制器的工作電壓至4.5V至5.5V，2.7 - 3.3的4位微控制器） |
| 文件頁數(shù)： | 9/30頁 |
| 文件大?。?/td> | 157K |
| 代理商： | EM73200 |
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* This specification are subject to be changed without notice.
7.17.1998
EM73200
4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT
ALU
The arithematic operation of 4 - bit data is performed in ALU unit . There are 2 flags can be affected by
the result of ALU operation, ZF and SF . The operation of ALU can be affected by GF only .
ALU STRUCTURE
ALU supported user arithematic operation function, including : addition, subtraction and rotaion.
ALU FUNCTION
(1) Addition:
For instruction ADDAM, ADCAM, ADDM #k, ADD #k,y .... ALU supports addition function.
The addition operation can affect CF and ZF. For addition operation, if the result is "0", ZF will be "1",
otherwise, not equal "0", ZF will be "0", When the addition operation has a carry-out. CF will be "1",
otherwise, CF will be "0".
EXAMPLE:
Operation
3+4=7
7+F=6
0+0=0
8+8=0
Carry
0
1
0
1
Zero
0
0
1
1
(2) Subtraction:
For instruction SUBM #k, SUBA #k, SBCAM, DECM... ALU supports user subtraction function . The
subtraction operation can affect CF and ZF, For subtraction operation, if the result is negative, CF will
be "0", it means a borrow out, otherwise, if the result is positive, CF will be "1". For ZF, if the result
of subtraction operation is "0", the ZF will be "1", otherwise, ZF will be "0".
EXAMPLE:
Operation
8-4=4
7-F= -8(1000)
9-9=0
Carry
1
0
1
Zero
0
0
1
ZF CF
SF GF
ALU
DATA BUS
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| EM73201BK | 4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM73201 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT |
| EM73201AP | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT |
| EM73201BK | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT |
| EM73201CP | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT |
| EM7320FP16AS-10L | 制造商:EMLSI 制造商全稱:Emerging Memory & Logic Solutions Inc 功能描述:128K x8 bit Super Low Power and Low Voltage Full CMOS Static RAM |
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