DEC finds and wants

From: Dave McGuire <mcguire_at_neurotica.com>
Date: Thu May 3 19:32:34 2001

On May 3, Chad Fernandez wrote:
> BTW, I have an M3104. It's supposed to be an 8-line Asynchronous
> Multiplexor, with DMA. What does that mean/Do/etc?

  It's eight serial ports that use DMA (Direct Memory Access) to
transfer blocks of characters to/from buffers set up in the host
processor's memory. Using DMA is a way to improve the performance of
an I/O subsystem by reducing its dependency on the host processor for
moving data back and forth.

          -Dave McGuire
Received on Thu May 03 2001 - 19:32:34 BST