Operation of micro-programmed control unit, Computer Engineering

Assignment Help:

Micro-instructions are stored in control memory. Address register for control memory comprises the address of subsequent instruction which is to be read. Control memory Buffer Register receives micro-instruction which has been read. A particular micro-instruction execution mainlyincludes the generation of desired control signals and signals used to determine the subsequent micro-instruction to be executed. Sequencing logic section loads control memory address register. It issues a read command to control memory. The subsequent functions are performed by micro-programmed control unit:

1. Sequence logic unit specifies address of the control memory word which is to be read in the Address Register of Control Memory. It also issues READ signal.

2. Desired control memory word is read into control memory Buffer Register.

3. Content of the control memory buffer register is decoded to create control signals and subsequent-address information for sequencing logic unit.

4. Sequencing logic unit finds address of next control word on the foundation of next-address information from decoder and ALU flags.

The execute cycle steps of micro-operations are different for every instructions additionally the addressing mode can be different. All such information normally is dependent on opcode of the instruction Register (IR). So IR input to Address Register for Control Memory is desirable. So there exist a decoder from IR to Address Register for control memory.


Related Discussions:- Operation of micro-programmed control unit

Show the conditional jump in program with example, Q. Show the conditional ...

Q. Show the conditional jump in program? CMP    AX, BX                      ; compare instruction: sets flags JNE     FIX                             ; if not equal do addi

State the hardware faults and softwate faults, State the hardware faults an...

State the hardware faults and softwate faults - protection against hardware faults could be to keep backups or use GFS; use of UPS (in case of power loss) and parallel system a

C++ program, A palindrome is a string that reads the same from both the end...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Differentiate between absolute and relative poverty, Question 1: Using ...

Question 1: Using appropriate diagrams, describe the optimal provision of a private good and a public good. Question 2: Using appropriate diagram, show how there is an

Determine the example - fork-join, Determine the Example - "fork-join" ...

Determine the Example - "fork-join" module initial_fork_join(); reg clk,reset,enable,data; initial begin $monitor("‰g clk=‰b reset=‰b enable=‰b data=‰b", $time, cl

What is database integration, What is database integration? Database in...

What is database integration? Database integration is the ability to give user-friendly and cost-effective software solutions for data infrastructure management by the interfac

Describe about micro-controllers, Q. Describe about Micro-controllers? ...

Q. Describe about Micro-controllers? Micro-controllers: These are a specialized device controlling computer which comprises every function of computers on a single chip. Chip

Types of validation controls provided by asp.net, Types of validation contr...

Types of validation controls provided by ASP.Net There are following types of validation controls provided by ASP.Net: 1. Required Field Validator 2. Compare Validator

Explain functional roles of information system, Q. Explain Functional Roles...

Q. Explain Functional Roles of Information System? Functional Roles of Information System 1 Lower Costs - a) Use IT to significantly reduce the cost of business proce

Develop the website, In this part you are required to develop the website t...

In this part you are required to develop the website that you designed in Your written report must describe any changes that you make to theoriginal plan with justification.

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