W83L517D Datasheet, PDF (130/138 Pages) Winbond – LPC SUPER I/O

W83L517D
Version 0.6
CRF3 (GP4 I/O selection register. Default 0xFFh )
When set to a '1', respective GPIO port is programmed as an input port.
When set to a '0', respective GPIO port is programmed as an output port.
CRF4 (GP4 data register. Default 0x00h when the port is active, otherwise 0xFFh)
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.
CRF5 (GP4 inversion register. Default 0x00h when the port is active, otherwise 0xFFh)
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.
CRF6 (GP5 I/O selection register. Default 0xFFh )
When set to a '1', respective GPIO port is programmed as an input port.
When set to a '0', respective GPIO port is programmed as an output port.
CRF7 (GP5 data register. Default 0x00h when the port is active, otherwise 0xFFh)
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 0x00h when the port is active, otherwise 0xFFh)
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: Apr. 2000
Revision 0.60