Skip to main content
Visitor II
June 27, 2003
Question

What's ''PIO Mode''?

  • June 27, 2003
  • 2 replies
  • 909 views
Posted on June 27, 2003 at 06:40

What's 'PIO Mode'?

    This topic has been closed for replies.

    2 replies

    jinsongAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:54

    What's PIO Mode? In VM Register, Bit 7 PIO_EN.

    [ This message was edited by: FlyMouse on 27-06-2003 09:15 ]
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:54

    Hi,

    This enables port A as peripheral IO.

    Port A then looks like the internal data bus at the selected addresses.

    Pages 11 and 12 of AN1560 detail this quite clearly

    This is available

    http://www.stmcu.com/files/mcu/8970.pdf

    Hope this helps

    Simon

    [ This message was edited by: sjh on 12-11-2003 16:25 ]