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

Discuss different routing plan adopted in telephone network, Discuss differ...

Discuss different Routing plan adopted in a Telephone network. Hierarchical networks are able of handing heavy traffic where needed, and at similar time use minimal number of t

How is recursion handled internally, How is recursion handled internally? ...

How is recursion handled internally? Internally, every recursive call to a function requires storing the intermediate values of the parameters and local variables in a run time

Search in problem solving - artificial intelligence, Search in Problem Sol...

Search in Problem Solving: If Artificial Intelligence can inform that the other science about anything, it is about problem solving and, in particular, how to research after s

How the system would work in real time- simulation, How the system would wo...

How the system would work in real time -  Sensors in/near road gather data (these can be infra-red/light sensors, pressure sensors, induction loops etc.) -data is generally num

What do you mean by instruction pipelining, After considering instruction e...

After considering instruction execution let's now describe a concept which is very popular in any CPU implementation. This conception is instruction pipeline.  To extract better

What are the benefits of micro programmed control, a. What are the benefits...

a. What are the benefits of hardwired and micro programmed control? b. Sketch neat diagram of single bus organization of CPU showing ALU, all types of registers and the data pat

De moiver theorem, application of de moiver theorem in software engineering...

application of de moiver theorem in software engineering

Need of the assembly language, Q. Need of the assembly language ? Machi...

Q. Need of the assembly language ? Machine language code comprises the 0-1 combinations which computer decodes directly.  Though the machine language has the following problems

Example multi-layer ann with sigmoid units, Example Multi-layer ANN with Si...

Example Multi-layer ANN with Sigmoid Units: However we will concern ourselves here that with ANNs containing only one hidden layer and as this makes describing the backpropaga

Explain the term thread scheduling, Problem: a) Most RMI and RPC system...

Problem: a) Most RMI and RPC systems expect to be supported by the "Request-Reply Protocol". Describe what "Request-Reply Protocol" is. b) Describe the invocation semantics

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