at89c52单片机简介中英文资料对照外文翻译文献综述A T89C52 Single-chip microprocessor introductionSelection of Single-chip microprocessor1. Development of Single-chip microprocessorThe main component part of Single-chip microprocessor as a result of by such centralize to be living to obtain on the chip，In immediate future middle processor CPU。
Storage RAM immediately﹑memoy read ROM﹑Interrupt system、Timer /'s counter along with I/O's rim electric circuit awaits the main microcomputer section，The lumping is living on the chip。
Although the Single-chip microprocessor r is only a chip，Yet through makes up and the meritorous service be able to on sees，It had haveed the calculating machine system property，calling it for this reason act as Single-chip microprocessor r minisize calculating machine SCMS and abbreviate the Single-chip microprocessor。
1976Year the Inter corporation put out 8 MCS－48Set Single-chip microprocessor computer，After being living more than 20 years time in development that obtain continuously and wide-ranging application。
1980Year that corporation put out high performance MCS －51Set Single-chip microprocessor。
This type of Single-chip microprocessor meritorous service capacity、The addressing range wholly than early phase lift somewhat，Use also comparatively far more at the moment。
1982Year that corporation put out the taller 16 Single-chip microprocessor MCS of performance oncemore －96Set。
The Single-chip microprocessor computer development havees the performance more and more to be improved﹑More and more distinguishings feature of strain。
2. Adopt the Single-chip microprocessor strong pointHacker use，Agileization of application。
●Have memory、Calculation and look-up meritorous service capacity。
May make the apparatus bearing that the rule can not make。
●The command system is fit for the real-time control。
●Bulk is little，Execution speed is quickly。
●Dependability is high，The antijamming capability is powerful。
●The temperature use limit is vast。
●Power-off protection is improved。
●The product development cycle brief。
●Identical set is much as the necessary interface chip sort，The meritorous service be able to be completely，Be convenient for to pick up achieve the minimal system。
●On the basis of the tall science and technology demand，Integration in common use software，Hardware （In case PL/M language，DAM's wave pattern producer，Analog switch awaits ）Application is agile。
Hence，Native is designed adoping with the Single-chip microprocessor core components designs。
3 . AT89C52 ComponentA T89C52 microprocessor main function parameter：And completely compatible with the MCS-51 product instruction and thepinThe 8K byte is programmable/scratches writes Flash to dodge the fastmemory1,000 time scratches writes the cycleEntire static operation: 0Hz - 24MHzThree levels of encryptions program memory256×8 byte interior RAMs32 programmable I/O lines3 16 fixed time/counters8 interrupt sourcesProgrammable serial UART channelThe low power loss is idle and falls the electricity patternCPU's compositionThe CPU is the Single-chip microprocessor core components，It consists of that ruing the arithmetic sum controller await。
1. Arithmetic unitThe meritorous service of arithmetic unit be able to be carrying on arithmetic operation and logic operation，The half-byte may be adjust﹑The separate word length and so on the data manipulate。
2. Order counter PCIt is used for leaving second order which will the be carried out address。
The address that the order points out in accordance PC brings out through the storage afterwards，The PC be able to plus 1 voluntarily，In immediate future point to the second order。
3. Order product registerLeave the instruction code in the order register。
When CPU's execute instruction，Send into the order register through reading aloud the instruction code get in the order storage，Decipher queen after the decipherer，Issue the relevant control signal through fixed time against the control circuit。
Complete the order meritorous service capacity.Storage1. Order storageUsed to leave order and form constant。
As to 8751，EA＝1Hour，Slice internalprocedure storage is occupied 0000H ～0When FFFH，Order storage fetch piece through the slice.2. Data storage utensil8751No matter the Single-chip microprocessor data storage utensil is living on the physics and the logic goes up wholly being divided into two addresss space，One act as the internal data storage，Call on the internal data storage in the way of order of MOV's，Another act as the external data storage utensil，Call on external data storage articles of daily use order of MOVX's，Addressing mode indirect addressing。