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.
> Please
> keep in mind that the memorymapped ports are only for the internal
> diskcontroller. And these models can only have 1 or 2 internal floppy drives
> and they have no connector for an external floppy drive.
I'll have to check this again; unfortunately I don't have acces to my Sony stuff
for another month or two. :(
Sean
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