Microprocessor 8085 Ppt By Gaonkar Free 2021

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| Resource Type | Source | Why it's equal to Gaonkar | | :--- | :--- | :--- | | Interactive Course | TutorialsPoint (8085 Microprocessor) | Organized into 20 bite-sized sections—from architecture to interfacing. Has diagrams similar to Gaonkar. | | Video Series | YouTube: "8085 Programming by R.K. Gaonkar style" (Channels: Ekeeda, Neso Academy) | Visual explanations of stack, interrupts, and timing diagrams—better than static PPTs. | | Handwritten Notes | University Academic Portals (Google site:edu 8085 notes filetype:pdf) | Detailed marginal notes explain Gaonkar’s examples line-by-line. | | Lab Manuals | VTU / JNTU 8085 Lab Manuals | Contain exact assembly programs from Gaonkar (Addition, Subtraction, BCD conversion). | | Open Courseware | MIT OCW (6.004 Computation Structures) – not 8085 specific but foundational | Teaches the same RISC concepts to understand the 8085 deeply. | I cannot directly provide or link to a

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7. Peripheral Chips & Common ICs

• Intel 8255 PPI: Modes, port configuration, example use for keyboards/LEDs.
• Intel 8253/8254 timer, 8259 PIC (compatibility notes), 8257 DMA, 8087 co-processor (historical).
• Typical interfacing circuits and code snippets.

Slide 13: References

• Ramesh S. Gaonkar – Microprocessor Architecture, Programming, and Applications with the 8085
• Intel 8085 Data Sheet
• Online resources (8085 simulators, tutorials)

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Slide 9: Timing Diagrams (Important in Gaonkar)

• Opcode fetch machine cycle
• Memory read / write cycle
• I/O read / write cycle
• Shows how RD, WR, IO/M, ALE signals behave

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8. Timing, Electrical Characteristics & PCB Considerations

• Power decoupling, clock distribution, noise suppression.
• Bus contention avoidance and pull-ups/pull-downs on control lines.
• Thermal and speed trade-offs with TTL families (74LS vs 74HC).

Module 5: Assembly Language Programming (ALP)

• The "Look Up Table" (LUT) method.
• Delay loops: Using NOP and DCR to calculate precise delays.
• Stack operations: Passing parameters via the Stack (LIFO).