DEC document AA-L619A-TK

On 29/11/2014 13:56, Mouse wrote: I'm not sure what you're looking for but I know of three MSCP documents which were at one time hard to find. However I acquired copies several years ago, scanned them, and made them available. They are: MSCP Basic Disk Functions Manual AA-L619A-TK, Version 1.2, First Edition April 1982 Storage Systems Diagnostics and Utility Protocol AA-L620A-TK April 1982 Storage System Unibus Port Description AA-L621A-TK April 1982 Collectively they make up the UDA50 Programmer's Documentation Kit, published by Digital Equipment Corporation, Part No. QP-905-GZ. There are three documents in the set, which are useful (if not essential) to anyone programming for DEC's RQDX controllers and other MSCP or TMSCP controllers, as well as the UDA50. Don't be put off by the "Unibus" in the title of the third; it's applicable to QBus systems as well. If you can't find them all, they are (temporarily) back at http://www.dunnington.u-net.com/public/MSCP/ -- Pete Pete Turnbull