On 20 Apr 1999 10:56:06 -0700 
 cgd@netbsd.org (Chris G. Demetriou) wrote:

 > Can you have multiple ISA/EISA busses in an Alpha?  That means that
 > there're multiple "I/O port 60"s, eh?

For every Alpha _I've_ ever seen, which supports multiple primary PCI
busses (4100 and 8200/8400):

	- 4100: Only the PCI bus on MID 4 is allowed to have a PCI-EISA
	  bridge, and this is the only PCI bus that console devices are
	  allowed to reside on.

	- 8200/8400: You can have multiple EISAs, but those bridges are
	  optional, don't work like normal PCI-EISA bridges, and these
	  systems don't include any of the "mainboard" ISA stuff like
	  the keyboard controller.

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>