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qiaoren2002
Visitor II
May 11, 2005
Question

P0?

  • May 11, 2005
  • 2 replies
  • 742 views
Posted on May 11, 2005 at 04:27

P0?

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    2 replies

    Q
    qiaoren2002Author
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 12:06

    I have a problem of uPSD3234, Can P0 port receive data from other device?

    T
    thomasthanner9
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 12:06

    It depends on the kind of the other device. I never did this, but it might work.

    P0 is the multiplexed A/D bus of the uPSD in 80pin packages. If you spend some hardware to demultiplex the data from the address and create a chip select from the address bus your other device can act just like a RAM or ROM. In this way you can exchange data between a uPSD and another device.

    But if you think about coupling two uPSD directly using P0, I don't think this setup will work without a bunch of glue hardware.

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