VLSI systems #12
Cache memory ISP' example
P.J. Drongowski

CAM has four operations.

  fn Store(Id, Value) -> { error, OK }
  fn Lookup(Id) -> { error, Value }
  fn Reset() -> { error, OK }
  fn Invalidate(Id) -> { error, OK }

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Design #1 Table lookup
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Design #2 Logic enhanced memory
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Observations.

  * Description of intent versus the actual structure of the system.
  * LEM's are hard to describe in ISP'.
  * Example of design via datatypes.