文档介绍：. .
. v .
Structure and function of the MCS-51 series
Structure and function of the MCS-51 series one-chip puter MCS-51 is a name of a piece of one-chip puter series which Intel pany produces. This pany introduced 8 top-grade one-chip puters of MCS-51 series in 1980 after introducing 8 one-chip puters of MCS-48 series in 1976. It belong to a lot of kinds this line of one-chip puter the chips have,such as 8051, 8031, 8751, 80C51BH, 80C31BH,etc., their basic position, basic performance and instruction system are all the same. 8051 daily representatives- 51 serial one-chip puters .
An one-chip puter system is made up of several following parts: ( 1) One microprocessor of 8 (CPU). ( 2) At slice data memory RAM (128B/256B),it use not depositting not can reading /data that write, such as result not middle of operation, final result and data wanted to show, etc. ( 3) Procedure memory ROM/EPROM (4KB/8KB ), is used to preserve the procedure , some initial data and form in slice. But does not take ROM/EPROM within some one-chip puters, such as 8031 , 8032, 80C ,etc.. ( 4) Four 8 run side by side I/O interface P0 four P3, each mouth can use as introduction , may use as exporting too. ( 5) Two timer / counter, each timer / counter may set up and count in the way, used