Author name: Abhay

The Architecture of 8085 Microprocessor

The functional block diagram or the internal architecture of the 8085 microprocessor is shown in the figure. The functional blocks of an 8085 microprocessor are, Registers. General Purpose Registers. Special Purpose Registers. Flag Registers. Arithmetic Logic Unit. Instruction Register and Decoder. Timing and Control Unit. Address Buffer. Address/Data Buffer. Incrementer/Decrementer Address Latch. Interrupt Control. Serial […]

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8085 Bus Organization

The operation of a microprocessor unit includes, Memory Read. Memory Write. I/O Read. I/O Write. Communication of a Microprocessor unit with peripheral devices involves, Identify peripheral or memory location. Transfer data and instruction. Provide timing and synchronization signals. The microprocessor uses three sets of communication lines called buses to perform these functions. A bus is

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Introduction to Microprocessors

A microprocessor (µP) is a multipurpose, programmable, clock-driven, register-based electronic device. It reads binary instructions from memory, accepts binary data as input, processes data according to the instructions, and provides output. It is a complete processing unit with necessary control signals. Reads binary instructions from memory. Accept binary data as input. Process data according to

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