VT82C686A Datasheet - VIA

VT82C686A PCI SUPER-I/O INTEGRATED PERIPHERAL CONTROLLER

f0Rx8, f4Rx2 Fixed block diagram, pinouts, register descriptions and electrical specs Fixed GPIO, PCS/MCCS, DRQ/DACK#, DACK IRQ option, FDC on LPT Fixed SuperIO RxF0-1,F6; FDCIObase+1,Fn0Rx43,59,5B-C,68,74-7F,80,88, 88,8A-F,Fn1Rx43,45,54,Fn2&3Rx8,41,42,Fn4Rx54,D2,PMUIORx0,20, 22,24,28/2A,2C,38,40,4.

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VT82C686A-VIA.pdf