Microprocessor 8085 Ppt By Gaonkar New «HD»

Single +5V DC power supply (an upgrade from the multi-voltage requirements of the 8080)

Addressing modes define how the operand is specified. Gaonkar classifies them into five types:

Gaonkar emphasizes understanding the internal block diagram. The architecture splits into several functional units: 1. The ALU (Arithmetic Logic Unit) The ALU performs all computing. Executes additions and subtractions. Handles logical AND, OR, and XOR operations. Controls the status of the Flag Register. 2. Registers Registers are small, fast storage locations inside the CPU:

A is not just a set of slides—it’s a structured learning module. It retains the logic and rigor of the original book while incorporating modern teaching aids: animations, comparative tables, and interactive examples. microprocessor 8085 ppt by gaonkar new

The Definitive Guide to the 8085 Microprocessor: Key Insights from Ramesh Gaonkar’s Seminal Work

+---+--+---+ X1 |1 +--+ 40| Vcc (+5V) X2 |2 39| HOLD RESET OUT |3 38| HLDA SOD |4 37| CLK (OUT) SID |5 Intel 36| RESET IN TRAP |6 8085 35| READY RST 7.5 |7 34| IO/M RST 6.5 |8 33| S0 RST 5.5 |9 32| RD INTR |10 31| WR INTA |11 32| ALE AD0 |12 29| S1 AD1 |13 28| A15 AD2 |14 27| A14 AD3 |15 26| A13 AD4 |16 25| A12 AD5 |17 24| A11 AD6 |18 23| A10 AD7 |19 22| A9 Vss |20 21| A8 +----------+ : RD¯modified cap R cap D with bar above WR¯modified cap W cap R with bar above (Write), and (distinguishes memory from I/O space). Status Monitors : S1cap S sub 1 S0cap S sub 0

These alter the normal sequential flow of program execution. Unconditional jump to a memory address. JC / JNC: Jump if carry / Jump if no carry. CALL / RET: Used to call and return from subroutines. Hardware Interrupts in 8085 Single +5V DC power supply (an upgrade from

The internal architecture of the 8085 is designed to fetch, decode, and execute instructions. Key components include: A. The ALU (Arithmetic Logic Unit) The ALU performs 8-bit arithmetic ( ) and logical ( ) operations. B. Registers

By understanding Gaonkar's framework and knowing where to look, you can master the 8085 microprocessor—a foundational technology that continues to shape how we think about computing today.

To isolate data from memory tracking channels, an external captures the lower address byte. When the 8085 sends out a high Address Latch Enable (ALE) signal, it commands the latch to store as the clean address lines The ALU (Arithmetic Logic Unit) The ALU performs

Operands are stored entirely within the internal registers.

Set to 1 if the ALU operation results in an absolute zero.