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Modular chip select control circuit and method for performing pipelined memory accesses

  • US 5,617,559 A
  • Filed: 08/31/1994
  • Issued: 04/01/1997
  • Est. Priority Date: 08/31/1994
  • Status: Expired due to Term
First Claim
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1. A modular chip select control circuit, comprising:

  • an address decode stage having a first plurality of address decoders, each address decoder associated with a programmable region and activating at least one corresponding control signal if an input address is within said programmable region;

    a timing control stage coupled to said address decode stage, having a second plurality of control units, each control unit receiving said at least one corresponding control signal from each of said first plurality of address decoders and responsive thereto to provide a corresponding plurality of timing signals to control a memory access; and

    a pin configuration stage coupled to said address decode stage and to said timing control stage, having a third plurality of pin configuration logic circuits, each pin configuration logic circuit programmable to provide a selected one of a plurality of chip select signals and responsive to selected ones of said corresponding plurality of timing signals of each of said second plurality of control units to provide said selected one of said plurality of chip select signals.

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