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

Conductometry experiment, why conductance is not zero at end pont? reply as...

why conductance is not zero at end pont? reply as soon as possible.

Electrical machine, what happens when we apply DC supply to transformer pri...

what happens when we apply DC supply to transformer primary

Load resistor , a) Include a Smoothing Capacitor to the Rectifier circuit a...

a) Include a Smoothing Capacitor to the Rectifier circuit and calculate the Output Voltage and Frequency b) Include a 47Ω Load Resistor and sketch the schematic diagram of the c

Explain common emitter circuit, Q. Explain Common Emitter Circuit With The ...

Q. Explain Common Emitter Circuit With The Help Of A Circuit Diagram? Most transistor circuits have the emitter,rather than the base,as the terminalcommon to both input and out

About on line teaching, i am Eectrical engineer and i want to teach student...

i am Eectrical engineer and i want to teach students on line mode. let me know the procedure. thanks pushpendra

What are the signals involved in memory bank selection, What are the signal...

What are the signals involved in memory bank selection in 8086 microprocessor? The 8086 based system will have two sets of memory IC's. One set for even bank and another for od

Output characteristics , Output Characteristics The output  or drain  ...

Output Characteristics The output  or drain  characteristic of N - Channel  power MOSFET. When gate  is made positive with respect to the source an N type  channel  is formed

Describe the meaning of standing wave ratio, a. Describe the meaning of sta...

a. Describe the meaning of standing wave ratio. What is the formula for it, if the load is purely resistive? Why is a high value of SWR often undesirable? b. Determine how the c

Back to back test of tranformer, what is the advantage and disadvantage of ...

what is the advantage and disadvantage of back to back test of transformer

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