Hello, I have a Scanfx with an ISA adapter card. The card is mapped to a jumper selectable range of addresses (0x220,230,260,270,320,330,360,370) and IRQ settings(3,4,5,10,11,12). After looking at the card, I determined that it is similar to a parallel port with the exception that the data bus is bi-directional. There are only a handful of LSttl chips (74LS245, 74LS244, 74LS86, 74LS74, 74LS174 and a 16?? pal) and one PAL on the board so it can't be doing too much. The address range of the card is four bytes (I think) and they are mirrored in the next four bytes since address line A2 isn't connected on the card edge. The A0 and A1 lines are connected, as well as A3 through A9. Nothing above that along with ~iow and ~ior only being used from the ISA bus. IRQs 3,4,5,10,11,12 are connected and are jumper selectable. The connector attached to the cardis a high density 25 pin Dsub style. In the scanner unit the LSI thatis connected to the interface (normal 25 Dsub on the scanner side) is a Plustek 92001. I am going to do some more hardware debugging to see what the card does when I have some time.
Is this information useful to anyone? The scanner is a paperweight to me unless I can use it under Linux since I stay away from that other operating system for intel platforms. Even so, the drivers available for Win95/98 aren't very good. My dad gave me the unit when he was done using it under Win98 for that reason. It's rather well made though and could be useful attached to my print server. Thanks, Fred
