29 Jan
2011
29 Jan
'11
12:34 p.m.
Tony Duell wrote:
I didn;t mean trying to conenct a Disk II controller
board to a Lisa I/O
board :-). What I meant was if you had a dump of the P6A PROM, the
schematics of the Disk II interface board and the spec of the IWM (which
you reference below), could you make a repalcement with not too much
work? The main problem would be if the state machine was different,
figuring out the new data from the ROM is a lot of work...
Presumably in 7 MHz mode the state machine is identical or very similar
to that of the Disk II controller. In 8 MHz mode, it must have
additional states.
Eric