) of a machine cycle, these pins hold the lower 8 bits of the address. During subsequent clock cycles ( T2cap T sub 2 T3cap T sub 3 ), they transition to serve as the bidirectional data bus.
Following the taxonomy established in Gaonkar’s book, instructions are grouped into five functional categories:
Addressing modes define how data is located and accessed by an instruction: microprocessor 8085 ppt by gaonkar
Eight instructions ( RST 0 through RST 7 ) that act as programmatic vector jumps. Slide 10: Interfacing and Peripheral Devices Slide Title: Peripheral Interfacing Concept Core Concepts:
Once the architecture is understood, a PPT would dive into programming basics: ) of a machine cycle, these pins hold
Immediate: Data is part of the instruction (e.g., MVI A, 32H ). Register: Data is stored in registers (e.g., MOV A, B ).
An interrupt is a signal sent by an external peripheral to the microprocessor, requesting immediate processing. Slide 10: Interfacing and Peripheral Devices Slide Title:
The instructions are the "language" of the processor. Gaonkar classifies them into functional categories. Data Transfer Instructions
Instead of listing 246 instructions randomly, a Gaonkar PPT organizes them by function:
Operates at a standard 3 MHz clock frequency (using a 6 MHz crystal oscillator connected to pins X1cap X sub 1 X2cap X sub 2 Technology: Built using High-density NMOS (HMOS) circuitry.
Interrupts are signals sent by external peripherals to request immediate service from the microprocessor. The 8085 features five hardware interrupts, prioritized as follows: