Microprocessor 8085 Ppt By Gaonkar //top\\ Guide

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The data is explicitly specified within the instruction itself (e.g., MVI A, 05H ).

Set to 1 if the result contains an even number of 1s. microprocessor 8085 ppt by gaonkar

| Internal Block | Function | |:---|:---| | | Performs all the arithmetic (addition, subtraction) and logical (AND, OR, XOR) operations on data. | | Register Array | A set of general-purpose registers (B, C, D, E, H, L) used as temporary storage for data during program execution. | | Accumulator (A) | The primary register where one operand is placed for ALU operations and where the result is stored. | | Flag Register | An 8-bit register with five 1-bit flags (Sign, Zero, Auxiliary Carry, Parity, Carry) that indicate the status of the last ALU operation, used for making decisions in a program. | | Program Counter (PC) | A 16-bit register that always holds the address of the next instruction to be executed. | | Stack Pointer (SP) | A 16-bit register that points to the top of a stack in memory, used for temporarily storing data or return addresses. | | Timing and Control Unit | Acts as the brain's pacemaker, generating the necessary control signals to synchronize all operations and fetch-execute cycles. | | Instruction Register and Decoder | Holds the current instruction being executed and decodes it to determine the operation to be performed. |

The highest priority interrupt. It is non-maskable (cannot be disabled by software) and vectored ( Suggestions for improvement The data is explicitly specified

: A significant portion of the slides is dedicated to the internal architecture. These slides include detailed block diagrams, breaking down the CPU into its key components: the Arithmetic Logic Unit (ALU), the Control Unit, and an array of registers. Key registers featured are:

A positive-going pulse generated at the beginning of each machine cycle to indicate that the bits on are address bits. 5. Interrupt Control and Serial I/O | | Register Array | A set of

The 8085 is an NMOS (Negative-channel Metal-Oxide Semiconductor) microprocessor introduced by Intel in 1976. It is an enhanced version of its predecessor, the 8080, designed to require fewer support chips to function.

To build an educational presentation using Gaonkar's methodology, one must outline how instructions execute over time. Microprocessor operations are broken down into precise intervals:

Carries synchronization signals like RD (Read) and WR (Write). Instruction Set and Addressing Modes

The first byte is the opcode, and the second byte is an 8-bit data/address (e.g., MVI A, 32H ).