All Questions
Tagged with vlsi microprocessor
8
questions
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532
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What is the purpose of design rules in VLSI
My doubt is what does it means micron and lamba design rules? And does it have any connections with nanometer process (eg. 7nm,14nm on microprocessor).
Actually what is the purpose of these design ...
3
votes
3
answers
520
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Processor Design: Just how complex is a real CPU datapath?
We're doing a course on Computer Architecture, and the course project involves creating an ARM-based processor.
We're supposed to create the processor in stages, and add significant features in each ...
3
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4
answers
3k
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How do processor transistor counts keep increasing, without geometric scaling?
Reading into the history of the semiconductor industry and Moore's Law, and looking at the ITRS/IRDS documents, I understand that scaling down and modern node names (7nm, 5nm etc) are now "...
1
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1
answer
129
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what triggers the PREADY signal in a slave of an APB?
I was trying to understand the state machine of an APB. I was curious on how the PREADY signal is triggered low so that it can exit from the ACCESS state?
If anyone could help me with this basic ...
0
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1
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Why the pins of a port in some microcontrollers are not in order? [duplicate]
In some ICs the pin numbers are not in proper order. For example, in msp430x12x2 series (following pic).
In the pic, why don't P2.0 be available at pin 20 (or adjacent to P1.0 ??)
Why is that few ...
2
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7
answers
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Why are 11, 111, 1111, ... equivalent to -1 in two's complement? [duplicate]
According to two's complement, the binary numbers 111 and 11111111 are equivalent to -1. Why or how are the binary numbers 11, 111, 1111, 1111 1111, etc. equivalent to -1 in two's complement? Can ...
4
votes
3
answers
1k
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Why All 1's used as a second input in decrement operation of ALU?
Suppose the first four data inputs are X (X0, X1, X2, X3) and the second four data inputs are Y (Y0, Y1, Y2, Y3) in a 4-bit ALU. Why "All 1's" are used as an input for Y in the decrement operation of ...
1
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1
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N-Well Resistor
So as I'm currently looking into basic VSLI, I made a simple voltage divider in Electric using N-Well resistors. I was hoping to understand: Why does an N-well act as a resistor? A reference to better ...