Intel A Programmable Peripheral Interface – Learn Microprocessor in simple Sets, Interrupts, Addressing Modes, Multiprocessor Configuration. enter image description here. is a programmable peripheral interface. It is used to interface microprocessor with I/O devices via three. PPI: 82C55 The 82C55 is a popular interfacing component, that Programmable Peripheral Interface Data bus D[] PA[] A0

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Minimum Mode Configuration of Pin Diagram of Types of Interrupts.

Draw and explain interfacing of with I/O mapped I/O mode.

The CPU may drive these lines using output port lines in case of multichannel applications. It is fastest technique.

Your email address will not be published. The port A address is h. Reset out signal from clock generator is connected to the Reset signal of the The count for rotating the shaft of the stepper motor through a specified angle may be calculated from the no.


Address lines A 0 — A 1 are used by for internal decoding. Design of Microprocessor-Based Systems Dr.

8255A – Programmable Peripheral Interface

With a pulse applied to the winding input, the rotor rotates by one teeth position or an angle x. Port A acts as a 8-bit input data port to receive the digital data output from the ADC. To get absolute address, all remaining address lines A 15 — A 2 are used to decode the address for Timers and Counters in Microcontroller.

It has three 8-bit parallel ports: CWR address is 86h.

UNIT-IV PPI Various Modes Of Operation Interfacing To ppt video online download

Debugging a Program in By using indirect address method this range can be extended upto 2 16 addresses. Select your Language English. Assume that the routine for this delay is already available. To use this website, you must agree to our Privacy Policyincluding cookie policy.

We think you have liked this presentation. Out of these 8 inputs only one can be selected for conversion by using 3 address lines A,B,C.

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UNIT-IV 8255 PPI Various Modes Of Operation Interfacing To 8086.

To get absolute address, all remaining address lines A 3 — A 19 are used to decode the address for In clockwise 5 rotations In anticlockwise 5 rotations. An external feedback resister acts to control the gain.

The sequence of pulses can be decided, depending upon the required motion of the shaft. Interfacing with Binary level pulses of v are required at its winding inputs to obtain the rotation of shafts.

Code Code segment Start: The stepper motor has an internal delay 2855 10msec. Supporting Circuits of Microprocessor. Share buttons are a little bit lower.

Block Diagram of Programmable Interrupt Contr Modular Programming in Microprocessor. Input Output Interfacing Techniques.