Microprocessor 8085 Ppt By Gaonkar Free [best]

The 8085 communicates with the outside world (memory and I/O devices) through three sets of signal lines, collectively known as buses:

A Gaonkar-style PPT categorizes instructions into five functional groups:

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These instructions copy data from a source location to a destination location without altering the source contents. MOV A, B (Move the contents of register B to register A) The 8085 communicates with the outside world (memory

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

Microprocessor operations are broken down into discrete time increments: These instructions copy data from a source location

CMP M (Compare the contents of memory pointed to by HL with the Accumulator) 4. Branching Instructions

A positive-going pulse generated at the beginning of every machine cycle. It signals external hardware (like a 74LS373 latch) to hold the lower 8 bits of the address ( ), freeing up the lines to transform into data lines ( ) for the remainder of the cycle. Status Signals ( ):

The CPU writes 8 bits of data to a specified memory location.

The flag register is an 8-bit register where 5 bits are active flip-flops indicating specific data conditions: