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wdcai
Visitor II
June 25, 2004
Question

how to config upsd3254 32K SRAM?

  • June 25, 2004
  • 2 replies
  • 580 views
Posted on June 25, 2004 at 07:58

how to config upsd3254 32K SRAM?

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    2 replies

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    wdcaiAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 12:01

    Dear Sir!

    I wan to config 32K SARM in 0000h to 7fffh,main flash in 8000h to ffffh (XDATA area) uisng paging method,

    How to config CSIOP and other device select signals in 0000h~7fffh? for example, CSIOP is located at 7f00h~7fffh,and other device selected signals are decoded in 7800h~7f00h? when those areas(7800 to 7fff) are accessed? what will happens? the CSIOP and other device siganls have higher priority than SRAM?

    Thanks!
    W
    wdcaiAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 12:01

    I have knownhow to config, only config rs0 to 0000~7800h is OK!

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