Learn Microprocessor From Basic to Advanced

Explore how primary and secondary memory store data and how read and write operations transfer data, with system clock synchronization and memory read/write cycles.

Explore the block diagram of the Intel 8085 microprocessor, detailing the accumulator, temporary register, instruction decoder, timing and control unit, data and address buses, and interrupt control.

Understand the accumulator, register a, which holds one value, stores the result during arithmetic or logical operations, and uses memory or general purpose registers for the second value.

Explains how the 8085 microprocessor sets the five flags: sign, zero, auxiliary carry, parity, and carry through an 8-bit addition example and flag status analysis.

Analyze the 8085 pin diagram, including a8–a15 address pins, ad0–ad7 multiplexed address/data pins, ale latch enable, and m/io and wr signals along with s1/s0 status bits.

Explore 8085 pin configuration, detailing interrupt input pins with programmable masks and priority, reset input and output, clock pins X1/X2 with external oscillator, and data paths to the 7-bit accumulator.

Learn the 8051 instruction set and its five groups—data transfer, arithmetic, logical, branch control, and I/O and machine control—and how data moves, operations execute, and jumps occur.

Explore direct, register, register indirect, and immediate addressing modes, plus implicit addressing, and learn how each mode directs data and operands in instructions, including the accumulator and memory locations.

Explore the data transfer group in microprocessors by learning move instructions, memory-to-register transfers, and addressing modes: immediate, direct, indirect, and extended, along with their machine cycles.

Explore how the instruction cycle combines fetch and execute steps, how the program counter points to memory, and how memory delays can create wait cycles during processing.

Explore timing diagrams of a microprocessor’s memory access, highlighting memory vs IO selection, fetch operation with S1, and how the address/data bus and address latch manage 16-bit memory addresses.

Learn how the decimal adjust for addition (DAA) works on 8085 microprocessors, correcting decimal results after addition by adding 6 when needed, and handling carry and auxiliary carry scenarios.

Learn to compute the ones complement in a microprocessor using CMA, transferring numbers from memory addresses 2501–2504, and storing results in 2503 and 2504.