30 May
2003
30 May
'03
12:16 a.m.
On 2003.05.29 20:27 Jerome H. Fine wrote:
John, if you are reading this, it would be best if you
could
confirm - also even better if you could explain why they
hardware to read the DEC RX02 8" floppy media is
not available on a PC.
I am not John, but this may be the explanation:
The RX02 uses double density only for the data inside the sector. The
sector header is (mostly) the same as a RX01 sector header and it is
rcorded in single density. Result: A RX01 holds 128 Bytes per sector, a
RX02 holds 256 bytes per sector, thus doubling the capacity. So the
floppy controller has to switch the data rate from sector header to
sector data... A really, uhhm, "interresting" design.
--
tsch??,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/