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rcrowell
Visitor II
April 21, 2006
Question

Default (initial) output state of GPIO pins

  • April 21, 2006
  • 1 reply
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Posted on April 21, 2006 at 06:04

Default (initial) output state of GPIO pins

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    R
    rcrowellAuthor
    Visitor II
    April 19, 2006
    Posted on April 19, 2006 at 15:19

    What is the default (initial) output state of the GPIO pins on the STR7 devices? According to the datasheet the ports start up in IPUPD mode (input with weak pull up/downs). Page 78 of the datasheet shows the I/O Data Register (PD) definition, but does not specify a reset value. I understand that the value that would be READ from PD depends upon the hardware configuration, but what is the default OUTPUT state of the port?

    Thanks for any help!

    Ryan

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