Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Write short note on the Johnson counter.
Ans:
Johnson Counter: It is a synchronous counter, where all flip-flops are clocked concurrently and the clock pulses drive the clock input of all the flip-flops together therefore there is no propagation delay. Fig.(a) demonstrates the circuit of Johnson counter. In case of the D input of FF0 is driven by Q‾ output of FF3, that is, the complement of the output of the final flip flop is fed to the D of FF0. Feedback of this arrangement generates the sequence of states illustrated in Table no.1. The 4 bit sequence has a total of 8 states (there is n bit sequence will have 2n states). Therefore an n bit Johnson counter will have a modulus of 2n.
The Q output of all stage feeds the D input of next stage. Although the Q‾ output of the final stage feeds the D input of primary stage. The counter fills up along with 1's from left to right and after that fills up 0s again as demonstrated in Table no.2. Fig. (b) Demonstrates the wave shapes/timing diagram of 4 bit Johnson counter.
Fig.(a) Logic Diagram of Johnson counter
Clock Pulse
Q0
Q1
Q2
Q3
0
1
2
3
4
5
6
7
Table no.1 Sequence of states of 4 bit Johnson Counter
Fig.(b) Timing Diagram of 4-bit Johnson Counter
Hypothesis ... since the Hebrew language is a Numerical language meaning that each letter in their alphabet has a numerical value. I believe, that the Hebrew-language based on a r
Q. Operation codes used in assembly instructions? Now let's describe various operation codes needed for this machine so that we can translate High level language instructions t
Communication displays give support in determining the frequency of communication, whether congestion in message queues or not, volume and the type of patterns being communicated e
Name the two operations of stack A stack has only two operations and they are insertion and deletion of items. The operation insertion is called push (or push-down) as it can b
What are bags and sequences? A bag is a collection of elements with duplicates permitted. A sequence is an ordered collection of elements with duplicates permitted.
How can we pass selection and parameter data to a report? There are three options for passing selection and parameter data to the report. Using SUBMIT...WITH Using a rep
How do you find the information on the current screen? The information on the present screen can be found by SYSTEM ? STATUS command from any menu.
Explain in detail companding. Companding: It is the process of compressing and expanding. This includes compressing the signal at the transmitter and expanding this at the re
State the Encryption and decryption process with example Encryption and decryption process in the Figure where Ram wants to send a confidential message to his friend Shyam. Ram
Illustrate the benefits of Functional model Functional model shows how values are computed. This model describes decisions or object structure without regard for sequencing. I
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd