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What's ''PIO Mode''?

jinsong
Associate
Posted on June 27, 2003 at 06:40

What's 'PIO Mode'?

2 REPLIES 2
jinsong
Associate
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 ]
simonharrison9
Associate II
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 ]