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W83977EF-AW Datasheet(PDF) 89 Page - Winbond

Part # W83977EF-AW
Description  WINBOND ISA I/O
Download  142 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W83977EF-AW Datasheet(HTML) 89 Page - Winbond

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W83977EF-AW/W83977EG-AW
Publication Release Date: Apr. 2006
-87-
Revision 1.2
CR28 (Default 0x00)
Bit 7 - 5: Reserved.
Bit 4: IRQ Sharing selection.
= 0
Disable IRQ Sharing
= 1
Enable IRQ Sharing
Bit 3:Reserved
Bit 2 - 0: PRTMODS2 - PRTMODS0
= 0xx Parallel Port Mode
= 100 Reserved
= 101 External FDC Mode
= 110 Reserved
= 111 External two FDC Mode
CR2A (Default 0x00)
Bit 7: PIN57S
= 0 KBRST
= 1 GP12
Bit 6: PIN56S
= 0 GA20
= 1 GP11
Bit 5 - 4: PIN40S1, PIN40S0
= 00 CIRRX
= 01 GP24
= 10 8042 P13
= 11 Reserved
Bit 3 - 2: PIN39S1, PIN39S0
= 00 SUSCIN#
= 01 Reserved
= 10 GP25
= 11 Reserved
Bit 1 - 0: PIN3S1, PIN3S0
= 00 DRVDEN1
= 01 GP10
= 10 8042 P12
= 11 SCI#


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