|
Message
From: Ben A. Abderazek<ben@s...>
Date: Thu Jan 29 07:49:04 CET 2004
Subject: [openrisc] memory mapped I/O
Hi, I am trying to select the addresses of several I/O ports ( COM, LPT1, MOUSE, and VGA) for a new designed processor. I want first to know, what are the general rules of I/O mapping.? Also, how can I select a good mapping so that I can add other I/O in the future expansion of the architecture.
Thank you for your help.
/Ben UEC, IS www.uec.ac.jp
|
 |