Micropeocessor

Microprocessor Fundamentals Course The International Congress for global learning and technology www.icgst.com Instructor: Ashraf Aboshosha, Dr. rer. nat. Engineering Dept., Atomic Energy Authority, eighth Section, Nasr City, Cairo, P. O. Box. 29 E-mail: aboshosha@icgst.com, Tel.: 012-1804952 Lecture Notes Lecture (4) Microprocessor Architecture and cognitive unconscious process Course course of study: Computer Architecture Microprocessor mental synthesis and Design Microprocessor programming and deed Microprocessor based Interfacing This is free educational material. Microprocessors have two major(ip) components The carrying out unit (EU) The Bus porthole unit (BIU) The Execution unit (EU) is employ mainly to do readings. It contains a roundabout called the arithmetic and logic unit (ALU). The ALU performs arithmetic ( + , - , * , / ) and logic (AND, OR, NOT) operations. The information for operations be stored in travel called Registers. A memorial is like a memory lieu except that we normally refer to it by a line rather than spoken language. The EU has eight registers for storing data; their name be AX, BX, CX, DX, SI, DI, BP, SP and FLAGS register. Bus interface unit (BIU) facilities communication among the EU and memory or I/O circuits.

It is trustworthy for transmitting address, data, and control signals on the buses. Its registers are named CS, DS, ES, SS, IP; they carry addresses of memory locations. The IP contains the address of next instruction to be executed by the EU. The EU and the BIU are connected via an immanent bus and they w ork to depressher. firearm the EU is execut! ing an instruction, the BIU fetches up to six bytes of the next instruction and places them in the instruction queue. This operation is called Instruction prefetch. The purpose is to quicken up the processor. 1 I/O Ports : I/O devices are connected to the data processor through I/O circuits. for each one of these circuits contains some(prenominal) register called I/O Ports. Some are used for data while others are used...If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay