Program counter , Electrical Engineering

Assignment Help:

Program Counter (PC)

It is a   16 bit  register.  It is a memory  pointer. It stores  the memory address  of the next  byte of the program to be executed. Memory  address is of 16  bits. Suppose a program  is stored in the memory  starting  from address 2000H ( 0010  000  0000  0000)  see fig  to execute this  program  starting  address is copied  in program counter (PC)  register. When the  program starts executing microprocessor provides  the memory  address from  program  counter.  The  first  statement  is accessed   at that location and is brought into the  microprocessor and  executed. While first statement . after executing  first  statement  microprocessor  get the  address of the  second  statement  from the program  counter.  Similarly  second statement  is also  executed  and program  counter is  incremented  by 1 and  points to the next  statement. The processor is repeated until   the program  is over.

Since  this register  points to the  memory  address of the program and keeps  incrementing by  one like a counter hence the name  given to it  is program counter.


Related Discussions:- Program counter

Kpi for second stage implementation, KPI for Second Stage Implementation ...

KPI for Second Stage Implementation These KPIs deal along with the quality of the relationship among a supplier and a user (customer). They are significant to potential custom

Basic definition of electromagnetism, Q. Basic definition of electromagneti...

Q. Basic definition of electromagnetism? A basic understanding of electromagnetism is essential to the study of electrical engineering because it is the key to the operation of

Compute the average number of open links, A zipper has N links every link h...

A zipper has N links every link has a state in which it is closed with energy 0 and a state in which it is open with energy 0 We require that the zipper only unzip from one side (s

Example numerical of dc generator., Q. An 8 - pole dc generator has 500 arm...

Q. An 8 - pole dc generator has 500 armature conductors and has a useful flux per pole of 0.065 web. What will be the emf generated if it is lap connected and runs at 1000 r.p.m.

Determine the study of robotics, Determine the study of Robotics Robots...

Determine the study of Robotics Robots can comprise embedded processors or be linked to a computer system. They are pre-programmed to do a specific task or taught' to remember

Elucidate the working of broad band ISDN, Q. Elucidate the working of broad...

Q. Elucidate the working of broad band ISDN? Ans: BISDN Configuration: Figuredemonstrates how access to BISDN network is accomplished. Every peripheral device is interfaced

Define amplification factor and drain resistance, Q. Define amplification f...

Q. Define amplification factor, drain resistance and transconductance and derive the relationship between drain resistance and trans conductance? Drain resistance It is the

Calculate the maximum power that transmitted to the load, Calculate the Max...

Calculate the Maximum Power That Transmitted To the Load? A 25 MW load at the 33 kV receiving-end busbar of a short 3-phase transmission line has a power factor of 0.8 lagging.

Determine the resonant frequency and bandwidth, (a) For a series RLC resona...

(a) For a series RLC resonant circuit, find an expression for the voltage across the resistance VR and obtain the ratio V R /V S , where V S is the applied voltage. Identify the e

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd