New | Microprocessor 8085 Ppt By Gaonkar

Set if the most significant bit (D7) of the result is 1 (negative number). Zero (Z): Set if the ALU operation results in exactly zero.

to signal external latches (such as the IC 74LS373) to split the lower address byte from the data byte. RD¯modified cap R cap D with bar above WR¯modified cap W cap R with bar above

A high-priority, maskable interrupt that is edge-triggered. RST 6.5: A maskable interrupt that is level-triggered. RST 5.5: A maskable interrupt that is level-triggered.

: Gaonkar categorizes instructions into five functional groups: microprocessor 8085 ppt by gaonkar new

The most successful PPTs start with a clear, functional definition: The microprocessor is a programmable device that takes in numbers, performs arithmetic or logical operations according to the program stored in memory, and then produces other numbers as a result .

Addressing modes describe how the microprocessor locates the data it needs to operate on:

+-------------------------------------------------------------------------------+ | INTERNAL ARCHITECTURE | | +---------------------------+ +------------------------------+ | | | INTERRUPT CONTROL | | SERIAL I/O CONTROL | | | | | | | | | | TRAP, RST 7.5, RST 6.5, | | SID (Serial Input Data) | | | | RST 5.5, INTR | | SOD (Serial Output Data) | | | +------------+--------------+ +--------------+---------------+ | | | | | | +------------v--------------+ +--------------v---------------+ | | | | | | | | | 8-BIT INTERNAL DATA BUS (DBUS) | | | | | | | +------------+--------------+ +--------------+---------------+ | | | | | | +------------v--------------+ +--------------v---------------+ | | | | | | | | | ACCUMULATOR (A) | | TEMPORARY REGISTER (TEMP) | | | | 8-bit | | 8-bit | | | +------------+--------------+ +--------------+---------------+ | | | | | | +----------------+----------------+ | | | | | +----------v----------+ | | | ALU (Arithmetic | | | | and Logic Unit) | | | +----------+----------+ | | | | | +----------v----------+ | | | FLAG REGISTER | | | | (Status Flags) | | | | S Z AC P CY | | | +---------------------+ | | | | +---------------------------+ +------------------------------+ | | | REGISTER ARRAY | | INSTRUCTION REGISTER (IR) | | | | | | | | | | B Register C Register | | INSTRUCTION DECODER | | | | D Register E Register | | & MACHINE CYCLE | | | | H Register L Register | | ENCODING | | | | | | | | | | STACK POINTER (SP) | +--------------+---------------+ | | | PROGRAM COUNTER (PC) | | | | | | | | | +-----------+--------------++ | | | | | | | +-----------v--------------+ +---------------v-------------+ | | | INCREMENTER/ | | TIMING AND CONTROL | | | | DECREMENTER ADDRESS | | CIRCUITRY | | | | LATCH | | | | | +-----------+--------------+ +---------------+-------------+ | | | | | | +-----------v--------------+ +---------------v-------------+ | | | ADDRESS BUFFER | | ADDRESS/DATA BUFFER | | | | (A15 - A8) | | (AD7 - AD0) | | | +--------------------------+ +-----------------------------+ | +-------------------------------------------------------------------------------+ | EXTERNAL PINS & SIGNALS | | +-----------------------------------------------------------------------+ | | | Address Bus (A15-A8) | Address/Data Bus (AD7-AD0) | Control Signals | | | +-----------------------------------------------------------------------+ | +-------------------------------------------------------------------------------+ Set if the most significant bit (D7) of

At the heart of the 8085's operation is its cleverly designed internal architecture. According to many PPTs based on Gaonkar, the 8085's functional blocks can be divided into three main units.

Title Slide (Topic, presenter name, and reference to Ramesh Gaonkar's textbook)

Because the keyword is popular, many websites upload generic 8085 PPTs and tag them "Gaonkar" to get clicks. Here is how to verify if the PPT actually follows Gaonkar’s sequence: RD¯modified cap R cap D with bar above

Gaonkar categorizes the instruction set based on function. This is perfect for slide breakdowns: Data Transfer Instructions These move data between registers and memory. Move data. MVI: Move immediate data. LDA: Load accumulator directly from memory. Arithmetic Instructions

An instruction lifecycle consists of three nested time units: , Machine Cycles , and Instruction Cycles .

Let’s address the actual search. Please note copyright laws; Gaonkar’s material is proprietary to Prentice Hall. However, several educational institutions host faculty-versions of the slides.