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From: david@wraith.cc.uow.edu.au (David E A Wilson)
Newsgroups: comp.sys.apple2
Subject: Re: want help with Mountain multifunction card
Date: 12 Nov 1995 12:58:20 +1100
Organization: University of Wollongong, NSW, Australia.
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> RJ> From: bob_jensen@jhuapl.edu (Robert Jensen)
>   > Subject: want help with Mountain multifunction card
>   > Date: Sun, 15 Oct 95 03:40:33 GMT

> RJ> I would like to get help with using a Mountain Computer
>   > multifunction card. If anyone has experience, or better
>   > yet documentation, please let me know. I can't puzzle out
>   > how to address the serial port, the parallel port, or the
>   > clock. Thanks for any help.

The memory map is as follows:

Cn00-CnEF	8x 240 byte ROM banks
CnF0-CnF7	32x 8 byte battery backed up RAM banks
CnF7		I/O select default (Bank 0 only) (I7..I1, bit 0 unused)
CnF8		RAM/ROM select (RAS4,RAS2,RAS1,RAS0,RAS8,ROS2,ROS1,ROS0)??
CnF9		Clock Data I/O Para SP Status
		(Spare,+OBE,-,-,+CD4,+CD2,+CD1,+CD0)??
CnFA/B		Serial chip (INS2651)
CnFC		I/O Select Mapper (+I07..+IO1,-)
CnFD		Parallel Data Out
CnFE		Clock Address & Control (MSM5832), Serial Control
		(+SCR,+CH,+CW,+CR,+CA4,+CA2,+CA1,+CA0)??
CnFF		not used
-- 
David Wilson	Dept CompSci Uni Wollongong Australia	david@cs.uow.edu.au