>Date: Mon, 08 Jan 1996 20:53:37 -0800
>From: "Michael L. VanLoon -- HeadCandy.com" <michaelv@HeadCandy.com>

>But, IDE still uses programmed-I/O (busy loops), tying up the
>processor for all I/O (unless there have been enhancements for
>EIDE/ATAPI that I don't know about).

The EIDE spec has optional DMA support.  I don't know how many
drives & controllers, if any, support it.
-- 
Mike Long <mike.long@analog.com>           http://www.shore.net/~mikel
VLSI Design Engineer         finger mikel@shore.net for PGP public key
Analog Devices, CPD Division          CCBF225E7D3F7ECB2C8F7ABB15D9BE7B
Norwood, MA 02062 USA       (eq (opinion 'ADI) (opinion 'mike)) -> nil