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8085 Microprocessor
- 1. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference 8085 Microprocessor Manish Tailor Malaviya National Institute of Technology, Jaipur December 29, 2017 Manish Tailor 8085 Microprocessor
- 2. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Table of Contents Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Manish Tailor 8085 Microprocessor
- 3. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference What is Microprocessor History of Microprocessor What is Microprocessor A microprocessor is a controlling unit of a micro-computer, fabricated on a small chip capable of performing Arithmetic Logical Unit (ALU) operations and communicating with the other devices connected to it. Manish Tailor 8085 Microprocessor
- 4. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference What is Microprocessor History of Microprocessor History of Microprocessor Processor Production Date (Year) Word Size (Bit) Number of Transistor Clock Rate 4004 1971 4 2300 108 kHz 8008 1972 8 3500 200 kHz 8080 1974 8 6000 2 MHz 8085 1976 8 6500 3.2 MHz 8086 1978 16 29000 5 MHz Manish Tailor 8085 Microprocessor
- 5. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Configuration Pin Diagram Configuration 8-bit data bus. 16-bit address bus, which can address upto 64KB. A 16-bit program counter. A 16-bit stack pointer. Six 8-bit registers arranged in pairs: BC, DE, HL. Requires +5V supply to operate at 3.2 MHZ single phase clock. Manish Tailor 8085 Microprocessor
- 6. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Configuration Pin Diagram Pin Diagram Manish Tailor 8085 Microprocessor
- 7. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Buses in 8085 Instruction Register/Decoder Timing and Control Circuit Accumulator and ALU Interrupt and Serial IO Registers Buses in 8085 Address bus : The Address Bus consists of 16 wires, therefore 16 bits. Its ”width” is 16 bits. A 16 bit binary number allows 216 different numbers, or 32000 different numbers. Manish Tailor 8085 Microprocessor
- 8. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Buses in 8085 Instruction Register/Decoder Timing and Control Circuit Accumulator and ALU Interrupt and Serial IO Registers Buses in 8085 Address bus : The Address Bus consists of 16 wires, therefore 16 bits. Its ”width” is 16 bits. A 16 bit binary number allows 216 different numbers, or 32000 different numbers. Data Bus : The Data Bus typically consists of 8 wires. Therefore, 28 combinations of binary digits. Data bus used to transmit ”data”, ie information, results of arithmetic, etc, between memory and the microprocessor. Manish Tailor 8085 Microprocessor
- 9. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Buses in 8085 Instruction Register/Decoder Timing and Control Circuit Accumulator and ALU Interrupt and Serial IO Registers Buses in 8085 Address bus : The Address Bus consists of 16 wires, therefore 16 bits. Its ”width” is 16 bits. A 16 bit binary number allows 216 different numbers, or 32000 different numbers. Data Bus : The Data Bus typically consists of 8 wires. Therefore, 28 combinations of binary digits. Data bus used to transmit ”data”, ie information, results of arithmetic, etc, between memory and the microprocessor. Control Bus : Control Bus are various lines which have specific functions for coordinating and controlling uP operations. Eg: Read/NotWrite line, single binary digit. Manish Tailor 8085 Microprocessor
- 10. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Buses in 8085 Instruction Register/Decoder Timing and Control Circuit Accumulator and ALU Interrupt and Serial IO Registers Instruction Register/Decoder Manish Tailor 8085 Microprocessor
- 11. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Buses in 8085 Instruction Register/Decoder Timing and Control Circuit Accumulator and ALU Interrupt and Serial IO Registers Timing and Control Circuit Manish Tailor 8085 Microprocessor
- 12. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Buses in 8085 Instruction Register/Decoder Timing and Control Circuit Accumulator and ALU Interrupt and Serial IO Registers Accumulator and ALU Manish Tailor 8085 Microprocessor
- 13. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Buses in 8085 Instruction Register/Decoder Timing and Control Circuit Accumulator and ALU Interrupt and Serial IO Registers Interrupt and Serial IO Manish Tailor 8085 Microprocessor
- 14. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference Buses in 8085 Instruction Register/Decoder Timing and Control Circuit Accumulator and ALU Interrupt and Serial IO Registers Registers Manish Tailor 8085 Microprocessor
- 15. Introduction Features of 8085 Microprocessor 8085 Microprocessor architecture Reference For Further Reading 1. Microprocessor Architecture, Programming and Applications with 8085 , by ”R. S. Gaonkar”. 2. Virtual Simulator :- https://virtual8085.codeplex.com 3. http://www.dgtal-sysworld.co.in/2012/03/ 8085-architecture.html 4. https://www.tutorialspoint.com/microprocessor/ microprocessor_8085_architecture.htm Manish Tailor 8085 Microprocessor