W83627F Information Storage Devices, Inc, W83627F Datasheet - Page 92
W83627F
Manufacturer Part Number
W83627F
Description
LPC Interface I/o Plus Kbc, Game Port, Midi Port
Manufacturer
Information Storage Devices, Inc
Datasheet
1.W83627F.pdf
(118 pages)
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CR62, CR 63 (Default 0x03, 0x30 if PNPCVS = 0 during POR, default 0x00 otherwise)
CR70 (Default 0x09 if PNPCVS = 0 during POR, default 0x00 otherwise)
CRF0 (GP10-GP17 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 (GP10-GP17 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 (GP10-GP17 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 ( MIDI FIFO Threshold Setting. Default 0x00) (Only for J Version)
= 00 1 byte
= 01 4 bytes
= 10 8 bytes
= 11 14 bytes
4.9 Logical Device 8 (GPIO Port 2)
CR30 (GP20-GP27 Default 0x00)
CRF0 (GP20-GP27 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 (GP20-GP27 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 (GP20-GP27 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.
These two registers select the MIDI Port base address [0x100:0xFFF] on 2 byte boundary.
Bit 7 - 4 : Reserved.
Bit [3:0] : These bits select IRQ resource for MIDI Port .
Bit 7 - 1 : Reserved.
Bit 0
= 1 Activate GPIO2.
= 0 GPIO2 is inactive.
- 88 -
Publication Release Date:November 2002
W83627HF/F
Revision 2.0
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