Re: DECstation I/O adresses

[Ralf Baechle <ralf@Julia.DE>]

Hi,

> Michael, i'm afraid that is not fully correct. AFAIK all Turbochannel 
> DECstations except the 5000/200 have an IO-ASIC on board which 
> supports DMA-Channels for the SCSI, Ethernet and even the serial 
> ports. These machines have no RAM buffers. But remember, this is 
> second if not third hand information, so take it with a grain of 
> salt. 

In case of doubt take a look at the motherboard.  The extra RAM for the
DMA buffer should be easy to recognize.  This concept is also being used
in the Desktstation Tyne.

  Ralf