W83626F Datasheet, PDF (16/34 Pages) Winbond – LPC-to-ISA Bridge

LPC TO ISA BRIDGE SET
W83626F/W83626D
Bit 6 -Bit 4 :
PRELIMINARY
Address Decoder 2 Output Selection.
Define which GP port as address decoder depended on CR33,CR34 and CR35.
= 000 Selected GPIO 0 as CS# output
= 001 Selected GPIO 1 as CS# output
= 010 Selected GPIO 2 as CS# output
= 011 Selected GPIO 3 as CS# output
= 100 Selected GPIO 4 as CS# output
= 101 Selected GPIO 5 as CS# output
= 110 Selected GPIO 6 as CS# output
= 111 Selected GPIO 7 as CS# output
Bit 3:
Bit 2 -Bit 0 :
Address Decoder 1
=1 Enable address decoder . Generate a CS# signal to GPIO port which
decided by bit[6..4] ,the specify address in CR31 and CR32 and mask
range in CR 30.
=0 Disable address decoder.
Address Decoder 1 Output Selection.
Define which GP port as address decoder depend on CR30,CR31 and CR32.
= 000 Selected GPIO 0 as CS# output
= 001 Selected GPIO 1 as CS# output
= 010 Selected GPIO 2 as CS# output
= 011 Selected GPIO 3 as CS# output
= 100 Selected GPIO 4 as CS# output
= 101 Selected GPIO 5 as CS# output
= 110 Selected GPIO 6 as CS# output
= 111 Selected GPIO 7 as CS# output
CR14 (GPI0-GPIO7 I/O Selection Register, Default 0xFF)
The register is programmable when the bit 0 of CR10 is set to “ 1 “.
Bit [7..0] are corresponding with GPIO [7..0] .
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.
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Publication Release Date: Feb 2000
Revision 0.50