Re: interrupt on demand

["Martijn Emons" <martijn.emons@arcobel.nl>]

 Hi JJ,
 
 Intels' 21554 & 21555 have a function called 'doorbell' interrupts.
 These chips are pci2pci bridges, and have a feature that use
 'write-1-to-set-interrupt' type of commands.
 (the old Intel bridge-types might also support this function)
 
 I don't know if there which card-manufacturer is actually using 'them ?
 Is there anybody out there that has spotted a card with these IC's on it,
 guys and girls?????
 
 'Hope this helps, Martijn
 
 Arcobel ASIC Design Centre B.V.
 The Netherlands
 tel.:  +31 73 64 60 100
 fax:  +31 73 64 60 115
 ----- Original Message -----
 From: "J. J. Farrell" <jjf@hal.com>
 To: <pci-sig@znyx.com>
 Sent: Wednesday, November 22, 2000 6:12
 Subject: interrupt on demand
 
 
 > To help test some software device drivers, I'm looking for a PCI
 > card which will raise an interrupt when requested by software.
 > The ideal solution would be a card which allows its registers
 > to be mapped into memory space, and has a register which causes
 > an interrupt to be raised whenever it is written to.
 >
 > That's the only functionality I want to use so I don't care what
 > else the card supports - it can be a simple test card or a fancy
 > I/O device as long as I can easily make it raise an interrupt, and
 > preferably don't need to do lots of setting up and configuration.
 > It's configuration space should be PCI compliant so Windows 2000
 > can automatically load my driver when the card is found.
 >
 > I'd be grateful for any suggestions and pointers to card specs.
 >
 >