Explain hardwired control organization, Computer Engineering

Assignment Help:

Q. Explain Hardwired control organization?

In the hardwired organization control unit is designed as a combinational circuit. The control unit is applied by gates, flip-flops, decoder and other digital circuits. Hardwired control units can be optimised for fast operations. Block diagram of control unit is displayed in Figure below. Major inputs to circuit are instruction register, clock, and flags. Control unit uses the opcode of instruction stored in IR register to perform various actions for various instructions. The Cu logic has unique logic input for every opcode. It simplifies the control logic. This control line selection can be executed by a decoder.

A decoder will have n binary inputs and 2n binary outputs. Every one of these 2n different input patterns will trigger a single unique output line. 

Clock part of the control unit issues a repetitive sequence of pulses for SS duration of micro-operation(s). These timing signals control the sequence of execution of instruction as well as determine what control signal requires to applied at what time for instruction execution. 

715_Explain Hardwired control organization.png

Figure: Block Diagram of Control Unit Operation


Related Discussions:- Explain hardwired control organization

Serial port communication, The 68HC11F1 has two types of serial ports namel...

The 68HC11F1 has two types of serial ports namely asynchronous (SCI) and synchronous (SPI). The most common form of communication device used in control is the SCI as this provides

Draw the logic circuit of Decimal to BCDencoder, What is an encoder? Draw t...

What is an encoder? Draw the logic circuit of Decimal to BCD encoder and explain its working. Ans. Encoder: It is a combinational logic circuit which converts alphanumeric ch

What are null values, What are null values? If the value of a field in ...

What are null values? If the value of a field in a table is indeterminate or unknown, it is known as a null value.

Show various RISC processors, Q. Show Various RISC Processors? RISC has...

Q. Show Various RISC Processors? RISC has fewer design bugs and its simple instructions decrease design time. Sodue to all the above important reasons RISC processors have beco

How do we synthesize verilog into gates with synopsys, How do we synthesize...

How do we synthesize Verilog into gates with Synopsys?  The answer can, of course, occupy various lifetimes to completely answer.. BUT.. a straight-forward Verilog module can b

New execution of listpermutations, Update the permutation algorithm from th...

Update the permutation algorithm from the text to obtainthe correct list of permutations even if the string haves repeated letters. For example, if you call ListPermutations on the

Properties of vector-based graphic files, Question: a) Write a short no...

Question: a) Write a short note on each of the terminologies below pertaining to multimedia: i) Developers. ii) Users. iii) Authoring Tools. iv) Product. b) Software d

Cheques vs credit cards, Cheques vs Credit Cards       E-cheques:  E-ch...

Cheques vs Credit Cards       E-cheques:  E-cheques are used for business dealing in e-commerce.  Transactions of these cheques take place on Internet. In this system the elect

State the term- interviewing, State the term- Interviewing This involv...

State the term- Interviewing This involves a one to one question & answer session between analyst and customer/employee. A good method if analyst wants to probe deeply into on

Desirable choice for the partitioning element in quick sort, A desirable ch...

A desirable choice for the partitioning element in quick sort is First element of the list.

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