W83697HFFDC Information Storage Devices, Inc, W83697HFFDC Datasheet - Page 160
W83697HFFDC
Manufacturer Part Number
W83697HFFDC
Description
LPC Interface I/o Plus Game/midi Port, Fan Control, Flash ROM I/f
Manufacturer
Information Storage Devices, Inc
Datasheet
1.W83697HFFDC.pdf
(167 pages)
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W83697HF/F
CRF0 (GP2 I/O selection register. Default 0xFF )
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.
CRF1 (GP2 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.
CRF2 (GP2 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.
CRF3 (GP3 I/O selection register. Default 0xFF )
When set to a '1', respective GPIO port is programmed as an inpu t port.
When set to a '0', respective GPIO port is programmed as an output port.
CRF4 (GP3 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.
CRF5 (GP3 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.
CRF6 (GP4 I/O selection register. Default 0xFF )
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 (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.
Publication Release Date: Feb. 2002
- 151 -
Revision 0.70
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