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Specifically, I am studying basic architecture as taught in a Comp. Org. class. I have a question about multiplexors.

I have a problem on an assignment which states to draw a block diagram for a 7-word MUX and determine how many control switches it should have. I'm not exactly sure what the problem means by "7-Word." My interpretation is that there are 7-inputs and thus there should be 3 control switches (the way to find the number of control switches is to take ceil(log_2(n)) and that the diagram would look like this:

  ctrl1      ctrl2   ctrl3
     |        |       |
   |                     |
 A-|      7-input MUX    |
 B-|                     |---OUT
 C-|                     |
 D-|                     |
 E-|                     |
 F-|                     |
 G-|                     |

I just want to be sure my interpretation is correct. Am I right to assume 7 "word" mux is the same as 7 "input" mux?

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Is this all the information you have? What is the textbook? What kind of class is this? (I can't imagine this being a question in a basic computing class, and if it is, it would deal with bits, not words). – Robert Harvey Dec 2 '13 at 1:13
This is an undergraduate junior level course in computer organization (we covered binary, hex, signed/unsigned ints, floating point, IA32 ATT assembly, Y86 ISA, boolean algebra, logic gates, and now this stuff) – Søren Dec 2 '13 at 1:14
Take a look at this: johnloomis.org/ece314/notes/carch/… – Robert Harvey Dec 2 '13 at 1:15
Thanks, I will check out that site now. I also posted my question on stack EE. – Søren Dec 2 '13 at 1:19

1 Answer 1

up vote 8 down vote accepted

The Stack Exchange site that is best suited for this particular question is Electrical Engineering.

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