Hello, I am having some trouble with the following set of questions.
I include them along with my answers.
Would anyone be able to confirm if I am correct here ?
Thanks kindly for any help.
Suppose a RISC machine uses overlapping register windows for passing parameters between procedures. The...
Hello, I need to design a circuit (3-bit priority encoder) whereby:
- if input X =1, then outputs B1=1, B0=1
- if inputs X=0, Y=1, then outputs B1=1, B0=0
- if inputs X=0, Y=0, Z=1 then outputs B1=0, B2=1
- if all 3 inputs = 0, then outputs B1=0, B0=0
Would this be the correct way to...
Hello, I am trying to prove that the following two expressions are the inverse of each other by using deMorgan's theorem.
i) X = A(B+C)
ii) X = A' + B'C'
I am having trouble doing this. Can this actually be achieved with these two expressions ?
Thank you for any help.
Hello, I can understand most boolean simplifications however I cannot grasp this one:
(A+C+D)(A+C+'D)((A+'C+D)(A+'B)
where the ' symbol represents a NOT.
Without using Karnaugh maps can someone please tell me how to go about simplifying this expression ?
Thank you kindly for any help.
Hello, I am trying to represent a binary word as different types of encoding. I am OK with all the different forms apart from the last one.
That last step is to represent it as RLL(2,7). However I do not know how to do it. After researching on the internet, it seems very complicated to do this...
hello, thanks kindly for your help.
However, I just can't see what I have done wrong with that final operation on the first question.
I ended up with remainder 11 after I performed the XOR operation on 1000 and 1011.
How could I get another result. I thought the rule with modulo 2 division...
Hello, could someone please confirm if have done the modulo 2 division in order to find the CRC code word for these two correctly.
1) using the CRC polynominal 1011, for the information word 0101 1001
(attached image 1 is my attempt)
2) using the CRC polynominal 1101, for the information word...
Hello, I am trying to understand the following modulo 2 long division.
I understand that 1101 goes into 1111, so you write a 1 on the top.
The next stage after 'XOR'ing is to bring down the 1.
Now, 1101 does not go into 101, so you write a 0 at the top. So far so so good.
Now you bring down...
Homework Statement
If a transmission line operating at 250 MHz has a characteristic impedance Z0 of
50 Ohm and propagation coefficient γ = 0.4 + j7.5 per meter, calculate its primary
coefficients R, L, C and G.
Hello, I do not know what formula I can use to solve this problem.
If anyone...
Hello, I have taken the attached filter response graph of filter gain to frequency created in micro-Cap. My cutoff frequency is 1kHz.
How can I measure the roll off rate in db/Dec based on this graph ?
Perhaps there is a formula ?
Any help would be appreciated.
Hello, I am wondering what sort of visual differences you would see between an AM modulated waveform with carrier and a DSBSC waveform (suppressed carrier) in the time domain on an oscilloscope.
Any help would be appreciated.
Hello, looking at the attached graph of noise voltage to frequency, I am trying to understand (from a noise point of view) why AM and FM broadcasts at the frequencies they do ?
Can anyone offer any suggestions please ?
Thank you.
Hello, I am trying to integrate 1/(x^2-1).
Apparently this can be solved by using trig substitution involving tan ?
Can someone please help me to understand how to go about it.
Thanks kindly for any help.
sorry, I attached the wrong image.
This is the O-pad attachment.
What does it mean when I get a negative value from one of the resistor formula calculations (as I am in this case).
Obviously I can't have negative Ohm resistors ?
Hello, I am trying to work out the resistor values for an 'O' attenuator.
I am using the attached formula to work out resistor 3's value.
My values to insert into this formula are:
Input impedance (Z1) = 50 Ohm
Load impedance (Z2) = 600 Ohm
a =1.995
However when I substitute these figures I am...