W83697HG Datasheet, PDF (84/109 Pages) Winbond – WINBOND LPC I/O

W83697HF/ HG
CRF7 (GP4 data register. Default 0x00 )
If a port is programmed to be an output port, then its respective bit can be read/written.
If a port is programmed to be an input port, then its respective bit can only be read.
CRF8 (GP5 inversion register. Default 0x00 )
When set to a '1', the incoming/outgoing port value is inverted.
When set to a '0', the incoming/outgoing port value is the same as in data register.
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Publication Release Date: May 30, 2005
Revision A1