>     http://www.mclink.it/personal/MG2508/nbsdeng/chap-ccd.html#AEN5085

This is not NetBSD's webpage, so you don't use NetBSD's send-pr for this.

If you go to the front page of this document, it has the author's name and
on the "purpose" page it has an email address.

> Change rsdX to rsdXc.

I think that is architecture specific.

   Jeremy C. Reed
   http://bsd.reedmedia.net/