Classification OF Microprocessor

Classification OF Microprocessor

1. WELCOME TO MY PRESENTATION Name: Tahmid Mobashir ID: ****** Batch: **** Presentation Topic Classification OF Microprocessor

2. What is Microproccessor ? A microprocessor is a control unit of a microcomputer which can perform arithmetic and logical work and communicate with different devices

3. Classification of microprocessor RISC Processor CISC Processor Special Processor

4. RISC processor RISC Processor Power pc : 601,604,615 DEC Alpha: 210642, 211066 PA – RISC: HP 7100LC The RISC Processor reduces the execution time by simplifying the computer’s instruction .

5. Characteristics Of RISC Processor One clock cycle is required for each instruction 1 In RICS Processor simple instruction are consistent 2 It Supports many types of data formats 3 It Consists of large number of registers 4 It Consists of less number of transistors 5

6. CISC Processor CISC Processor IBM 370/168 VAX 11/780 Intel 80486 The CISC Processor is designed to Minimize the number of instructions For each program .

7. Characteristics Of CISC Varity of addressing modes 1 Large number of instruction 2 Variable Length of instruction format 3 Several cycles may be need for one instruction 4 Instruction decoding logic is complex 5

8. Special Processor Processors that are designed to do Certain things are called special Processors. Special Processor Coprocessor Input & output Processor DSP Transputer

9. Different between RISC & CISC RISC Microprocessor CISC Microprocessor Instructions of same set with few formats Multiple instruction sizes and format Uses more resisters Less registers Fewer addressing modes More addressing modes Instructions take one cycle time Instructions take a varying amount of cycle time