Category: Uncategorized

8259 Programmable Interrupt Controller (PIC)

8259 programmable interrupt controller (PIC) The 8259 is defined as a programmable interrupt controller (PIC). In 8085 and 8086 there are 5 hardware interrupts and 2 hardware interrupts. By connecting to 8259 in a processor, you can increase the interruptions in processing capacity. 8259 combines multiple input inputs with a single output disruption. The interface […]

Intel 8253 – Programmable Interval Timer

Intel 8253 – Programmable Interval Timer The Intel 8253 and 8254 processors are programmable interval programmers (PTIs) designed for microprocessors to perform timing and counting functions using three 16-bit registers. Each register has 2 input pins. For example, clock IN  and 1 pin for the output “OUT”. To operate a counter, a 16-bit counter is […]


Bluetooth Bluetooth is a wireless technology that is used to transfer data between electronic devices. On comparison with other mode of wireless communication the distance of data transmission is very small. This technology has reduced the use of cords, cables, adapters and permitted the electronic devices to communicate wirelessly among each other. Features of Bluetooth […]

8051 Programming Structure

8051 programming Concept is useful to start the programming of the Embedded systems. If you are learner and want to start the learn about the embedded system programming concept with 8051 micro controller then these programs are very helpful to understand the basic program writing in Embedded C as well as build the concept of embedded […]


Meaning of memory in human analogy  Human memory (brain) are play very important role in life. Brain, store all the information and human react the whole world with the help of these information’s. Now the same concept applies in the CPU. In computer worlds we can say that CPU work as a human and computer […]

8085 Microprocessor Interview Questions

What is flip-flop? A flip-flop is a binary cell capable of storing one bit of information. It has two outputs; one for the normal value and one for the complement value of the bit stored in it. . It has the property to remain in one state indefinitely until it is directed by an input […]

Microprocessor Microcontroller Questionnaire

What is Microprocessor? Ans. Microprocessors are programmable device which is use to do a task automatically. What is Microcontroller? Ans. Microcontroller is the compilation of memory, peripheral devices, buffers, with microprocessor which use to perform a specific task according to the desired output. What is the Difference between Microprocessor and Microcontroller? Ans. Microprocessor is a […]

Getting Started with AVR STUDIO

Atmel AVR studio is an integrated development environment used for developing and debugging embedded AVR applications. In this tutorial we will learn getting started with AVR Studio IDE platform with the help of basics program on ATMEGA series microcontroller in C language. Getting Started with AVR STUDIO Steps for new project: STEP 1: Open AVR […]