not sure if this has come up with regard to 1551 drive but i've just found
this on my hard drive ?
Here are the answers to Commodore Trivia Edition #6 for May, 1994.
Q $050) The Commodore 1551 Disk Drive is a parallel device. How did it
connect to the Commodore Plus/4 and C16?
A $050) The Commodore 1551 connected via the expansion port. Therefore, it
was a parallel device, and could work at much faster speeds.
Q $051) How many could you attach?
A $051) Two, The second drive cable attached to the back of the first cable.
Q $052) What were the addresses they used? (Not device numbers)
A $052) The two drives were mapped into the Address space at $fec0 and $fef0
of the Plus/4 or C-16. The 6523 Triple Interface Adaptor chip is
mapped in at these locations and has 8 registers each.
-----------
petlibrary@bigfoot.com
http://members.tripod.com/~petlibrary/
http://www.icpug.org.uk
http://www.fortunecity.co.uk/skyscraper/perl/316/
-
This message was sent through the cbm-hackers mailing list.
To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tcm.hut.fi.
Archive generated by hypermail 2.1.1.