Subject: 3/470 - IO Cache
To: None <port-sun3@NetBSD.ORG>
From: Jeremy Cooper <jeremy@broder.com>
List: port-sun3
Date: 01/19/1997 19:41:04 
On Sun, 19 Jan 1997, Michael Richardson wrote:

>   So, is the 470 a 40Mhz system or what? What's an I/O cache? 

Every one else has answered your speed question, so I'll take the liberty
of telling about the I/O cache.

The I/O cache is a DMA cache.  That is, it is a cache for data received by
DVMA devices.  It makes for very fast DMA transfers.

-J