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'OT: weird 1/2 ECP printer port'
1998\07\24@122428 by Peter L. Peres

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Ok, I've tried various things, this is a crippled EPP apparently, so I'm
giving up. Will use old uni-directional method using status port to input
nibbles and ext. mux.

On the same topic: Is there a PCI/parallel bridge chip ? Most
specifically, I am looking (desperately) for one of those extra large
one-in-all black multi-non-pinned monsters, that has 32 to 40 digital IO
pins and an interrupt on change capability on at least some of them, and
interfaces them to the PCI bus.

I want no double buffering, no guaranteed synchronous update, no fan-out,
just an 82C55 on steroids, and direct writes at bus speed, possibly
supplied mounted on an evaluation board with PCI connector and bread-board
area. A JTAG (or SPI) master integrated into this would be the topping on
the cake. I don't even want switchable pins <G>, the SPI can stay there
and waste 4 pins as far as I'm concerned. An EEPROM or serial number to
make it possible to use more than 1 on the same main board would be nice
but not obligatory.

I have a strong feeling that if some semiconductor manufacturer or other
would come up with such a board with a SCSI-type mini 50 pin connector on
the bracket for IO, millions of hobbyists and design engineers would
generate an enormous sigh of relief everywhere.

I also suspect that it would be a fortnight's job for a VHDL artist using
a canned PCI library module.

End user price in the $20-30 area would be nice.

Anything like this around ?

(dreaming ?)

       Peter

1998\07\24@143309 by Dennis Merrill

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At 07:16 PM 7/24/98 +0000, you wrote:
>Ok, I've tried various things, this is a crippled EPP apparently, so I'm
>giving up. Will use old uni-directional method using status port to input
>nibbles and ext. mux.

I don't believe you. There is no such thing as crippled EPP.

>
>On the same topic: Is there a PCI/parallel bridge chip ? Most
>specifically, I am looking (desperately) for one of those extra large
>one-in-all black multi-non-pinned monsters, that has 32 to 40 digital IO
>pins and an interrupt on change capability on at least some of them, and
>interfaces them to the PCI bus.

Check out PLX.  They make excellent PCI bridges, some of them have a
programmable local bus that you can make act like just about anything you
want.  Plus they have some neice eval boards.  AMCC also makes some parts
like this.

1998\07\24@152748 by Bill Cornutt

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I have a friend who sells a kit for a multiple I/O port with
bread board.  The card is the 8 bit type.  I have one and
like it.

His web site is

http://www.2xtreme.net/dage/

and the kit is the MicroLab.

Hope this helps.

Bill C.  spam_OUTbillTakeThisOuTspamcornutt.com

{Quote hidden}

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