Microprocessor 8085 Ppt By Gaonkar Free Verified Instant

The primary 8-bit register used in all ALU operations. It stores one operand and receives the final result. General-Purpose Registers: Six 8-bit registers ( ). They can be combined into 16-bit register pairs ( ) for handling 16-bit data or memory addresses. The HLcap H cap L pair functions as a memory pointer (

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Visual breakdown of , Memory Read , Memory Write , I/O Read , and I/O Write cycles. The exact behavior of control signals like S0cap S sub 0 S1cap S sub 1 RD̄modified cap R cap D with bar above WR̄modified cap W cap R with bar above during execution. 4. Interrupts and Peripheral Interfacing

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Moving data between registers, memory, and I/O (e.g., MOV , MVI , LDA , STA ).

Set if an arithmetic operation generates a carry or borrow out of the MSB. Slide 5: Demultiplexing the Address/Data Bus

The 8085 communicates with the outside world (memory and I/O devices) through three sets of signal lines, collectively known as buses: The primary 8-bit register used in all ALU operations

Performs Boolean logic manipulation, bit rotations, or data comparisons. (Examples: ANA , XRA , ORA , CMP , RLC ).

: Changing program flow conditionally or unconditionally (e.g., JMP , JC , CALL , RET ).

The 40-pin DIP IC operating on a single +5V power supply.

A clean summary checklist for students preparing for examinations. Final Checklist for Presentations They can be combined into 16-bit register pairs

The total time required to fetch and execute an instruction.

Bit Pointer: D7 D6 D5 D4 D3 D2 D1 D0 +----+----+----+----+----+----+----+----+ Flag Name: | S | Z | X | AC | X | P | X | CY | +----+----+----+----+----+----+----+----+ (S=Sign, Z=Zero, X=Undefined, AC=Auxiliary Carry, P=Parity, CY=Carry) Detailed Flag Functions Set to 1 if the most significant bit ( D7cap D sub 7 ) of the ALU result is 1, indicating a negative number.

These presentations and documents are frequently used in academic settings and cover the core concepts from Gaonkar's work, such as architecture, instruction sets, and interfacing. 8085 Microprocessor - Ramesh Gaonkar (Complete) : A comprehensive slide deck hosted on SlideShare