Intel 386EX embedded processor

From: learner (sonalsingh28_at_yahoo.com)
Date: 06/30/04

  • Next message: Karl Olsen: "Re: Intel 386EX embedded processor" 
    Date: 29 Jun 2004 21:54:30 -0700

    Hi,
    I am working on a small design using Intel 386EXTC processor. The
    design has a 512KB Flash and a 512KB SRAM. The processor user manual
    says "The chip-selects generated by this unit can simplify external
    "glue logic" by providing signals that can be connected directly to
    the chip-enable inputs of external
    memory and I/O devices."

    My question is if I am using 8bit memories, is it possible that I can
    take UCS and connect it directly to Flash that has startup information
    and CS0 to SRAM? Is there a necessity of glue logic?
    If yeah, how can I do that using A15:A25 address lines and get the CE
    for SRAM and FLASH?

    Also, do I need a 50MHz external oscillator that will be the input at
    pin clk2 for 25MHz operation of processor?

    Thanks

    learner

  • Next message: Karl Olsen: "Re: Intel 386EX embedded processor"

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