Illustrate working of synchronous counters, Computer Engineering

Assignment Help:

Q. Illustrate working of Synchronous Counters?

The main drawback of ripple counter is delay in changing the value. How? To understand this let's take a case when state of ripple counter is 0111. Now subsequent state will be 1000 that means change in state of all flip-flops. However will it take place concurrently in ripple counter? No first O0 will change then O1, O2 and finally O3. Delay is proportional to length of the counter. Thus to avoid this drawback of ripple counters we use synchronous counters in which all flip-flops change their states simultaneously. Figure below shows 3-bit synchronous counter.

107_Illustrate working of Synchronous Counters.png

Figure: Logic diagram of 3-bit synchronous counter

You can understand the working of this counter by analyzing sequence of states (O0, O1, O2) given in Figure below.

1538_Illustrate working of Synchronous Counters1.png

Figure: Truth table for 3 bit synchronous counter

The operation can be briefed as: -

i)  First flip-flop is complemented in each clock cycle.

ii) Second flip-flop is complemented on occurrence of a clock cycle if current state of first flip-flop is 1.

iii) Third flip-flop is fed by an AND gate which is connected with output of first and second flip-flops. It will be complemented only when first and second flip-flops are in Set State.


Related Discussions:- Illustrate working of synchronous counters

Define the meaning of business-to-business, Define the meaning of business-...

Define the meaning of business-to-business. B2B (business-to-business): The consensus is universal: it is the priority; it is where the money is. It’s rather true; theref

Give difference between compiler and interpreter, Give difference between c...

Give difference between compiler and interpreter. Compiler: It is a translator for machine independent HLL as FORTRAN and COBOL etc. Interpreter: It analysis the source

Fuzzy logic - artificial intelligence, Fuzzy Logic: In the logics we a...

Fuzzy Logic: In the logics we are here described above, what we have been concerned with truth: whether propositions and sentences are true. Moreover, with some natural langua

Which dependencies of hierarchical tables in the sap system, The structure ...

The structure of Logical Databases reflects which dependencies of hierarchical tables in the SAP system. Foreign Key dependencies

Draw a schematic for managing dynamic storage allocation, Draw a simple sch...

Draw a simple schematic for managing dynamic storage allocation. A simple schematic for managing dynamic storage allocation is as follows: Block size pointe

Explain how someone refine the ratio analysis, Refining the Ratio Analysis ...

Refining the Ratio Analysis Basically, refinement leads to purity. Thus to get a cleaner, more understandable and consistent design need to iterate analysis process.  R

Loop level-levels of parallel processing, Loop Level At this level, rep...

Loop Level At this level, repeated loop iterations are the applicants for parallel execution. However, data dependencies among subsequent iterations may limit parallel executio

State about the behavioral modeling, State about the Behavioral modeling ...

State about the Behavioral modeling Behavioral means how hardware behaves determine exact way it works we write using HDL syntax. For complex projects it's better mixed approac

The source to the current version, How do I update an existing copy of the ...

How do I update an existing copy of the source to the current version? Ans) As the common code changes, you might need to update your copy to have the lastest version. To do tha

Two ethernet switches sw1 and sw2 , Six machines H1, H2, ..., H6 are linked...

Six machines H1, H2, ..., H6 are linked by two Ethernet switches SW1 and SW2 as given below. Both switches have four ports drawn. The port numbers are as indicated. Suppose the two

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