] On Wed, Feb 07, 2001 at 10:02:11PM +0100, Alex Wulms wrote:
] > ] > Following bit table is applicable for the two drive number bits:
] > ] > B1 B0
] > ] > 0  0  : drive A selected
] > ] > 1  0  : drive A selected
] > ] > 0  1  : drive B selected
] > ] > 1  1  : no drive selected
] > ] 
] > ] Uhm once I connected two external drives to my Sony HB-F700P, which worked 
] > ] fine. Possibly "1 0" is used for the third drive (if connected).
] > In that case I should update my note that "1 0" implies drive A is only valid 
] > on Philips NMS 8250/55 series. If memory serves me well, it is hardwired like 
] > that in those models. At least, according to the service manuals...
] 
] I've tested it on an nms-8280: writing 82 do 7FFDh caused the "in use" led
] of drive a to go on. I had written C9h (RET) to FD9Fh.
That is very plausible. After all, te 8280 is simply a 8250/55 + 
superimpose/digitize functionality.

Kind regards,
Alex Wulms


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