Rules | Recent posts | topic RSS | Search | Register  | Log in

Mux question

 
Post new topic  Reply to topic    EDAboard.com Forum Index -> ASIC Design Methodologies & Tools (Digital)
Author Message
phoenix_pavan



Joined: 10 May 2008
Posts: 24
Post10 May 2008 18:23   Mux question
Design a system using a 4:1MUX to identify whether a 4-bit number is prime
Back to top
basha_vlsi



Joined: 19 Mar 2008
Posts: 23
Helped: 2
Location: Hyderabad, India
Post13 May 2008 6:28   Re: Mux question
with four bit the possible prime no are 2,3,5,7,11,13

y = f(A,B,C,D) = ∑(2,3,5,7,11,13);

...........C __|\
..................| \
...........D __| |
.....C & D __| |------ Y
notC & D __| |
...................| /
...................|/
....................| |
....................A B

( To visible mux diagram i added excess .(dots) which doesn't signify any thing)

For the 4:1 mux give inputs as C, D, ( C and D) , ( (notc) and D) resply
and select inputs as A, B
out put is Y

Here A is MSB and D is LSB

[/img]
Back to top
sp3



Joined: 01 Jan 2008
Posts: 70
Helped: 5
Post13 May 2008 6:55   Re: Mux question
Hi basha_vlsi,

How did u arrive at the inputs .. I mean design of (C and D) ( not(C) and D).. Please elaborate.. it will be helpful..

thanks,
sp3
Back to top
basha_vlsi



Joined: 19 Mar 2008
Posts: 23
Helped: 2
Location: Hyderabad, India
Post13 May 2008 10:21   Re: Mux question
In (C and D) and is logical and

Sorry, but you need login in to view this attachment
Back to top
Post new topic  Reply to topic    EDAboard.com Forum Index -> ASIC Design Methodologies & Tools (Digital)
Page 1 of 1 All times are GMT + 2 Hours


Abuse
Administrator
Moderators
topic RSS 
sitemap