Re: How to achieve a long burst <OFFTOPIC>?

["Scott C. Karlin" <scott@CS.Princeton.EDU>]

You will need a bus arbiter.  The Intel document
"Issues with Host Processor Card Applications Using
the 21554" (number 278216-001), may be helpful.

Scott


Schaefer, Peter writes:
> 
> What's needed to become a PCI bus master?
> We have a processor board that hides behind a 
> non-transparent Intel 21554 bridge, therefore 
> seen as a device from the host CPU. The bridge
> cannot be arbiter of the primary bus the host 
> CPU is on but supports the "Master Enable"-Bit
> on this side. Would it be sufficient to set this
> bit to enable the "Slave-CPU" on the secondary side
> of the bridge to do Busmaster-DMA?