Microprocessor 8085 Ppt By Gaonkar Jun 2026

The Intel 8085 microprocessor is arguably one of the most foundational topics in computer engineering and electronics. Ramesh S. Gaonkar’s textbook, " Microprocessor Architecture, Programming, and Applications with the 8085, " is the definitive guide to this technology. Understanding the 8085 is not just about learning an old chip; it is about understanding the core principles of how processors, memory, and I/O devices interact.

Slide 7: Demultiplexing the Bus and Generating Control Signals Bus Demultiplexing & Control Logic

Copies data from a source to a destination without modifying the flags (e.g., MOV , MVI , LXI , LDA , STA ). microprocessor 8085 ppt by gaonkar

Changes the normal sequential flow of program execution conditionally or unconditionally (e.g., JMP , JC , JZ , CALL , RET ).

Addition, subtraction, increment, and decrement. Logical operations: AND, OR, XOR, and Compare. Rotate operations: Shifting bits left or right. 3. The Flags Register The Intel 8085 microprocessor is arguably one of

The 8085 microprocessor has the following features:

A dual-sided 40-pin schematic diagram color-coded by signal functionality. Key Content: Address/Data Bus ( Understanding the 8085 is not just about learning

: The 8085 uses five modes to specify operands: Immediate , Register , Direct , Register Indirect , and Implied .

One subdivision of an operation corresponding to one internal clock pulse duration. A machine cycle consists of 3 to 6 T-states. Example: Opcode Fetch Cycle

AD0–AD7: Multiplexed address/data lines. This saves pins by using the same lines for the lower 8 bits of the address and the 8-bit data. A8–A15: Higher-order address lines. Control and Status Signals

But what exactly should you look for in such a PPT? And how do you use Gaonkar’s framework to master the 8085? This article provides a comprehensive breakdown of the essential slides, the core architecture, and where to find authentic materials.