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Question regarding Pentium 4 CPU and bus

  1. Dec 9, 2011 #1
    1. The problem statement, all variables and given/known data
    Why is it impossible for Pentium 4 to work in a 32-bit PCI bus without loosing any functionality? After all, other computers with a 64-bit data bus can do transfers of 32, 16 and even 8 bits wide.

    2. Relevant equations

    3. The attempt at a solution
    I'm not sure what loss of functionality is being referred to here.
    Does it have to do with the fact that Pentium 4 has 36 address lines? Or that PCI has a relatively low clock rate (up to 66 MHz)?
    I don't have any idea.

    Thank you in advance.
  2. jcsd
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