PCI floppy controller
Fred Cisin
cisin at xenosoft.com
Sat Apr 23 14:56:15 CDT 2022
On Sat, 23 Apr 2022, Bill Gunshannon via cctalk wrote:
> Your right about all the available options. Somewhere around here I
> have a couple of P112 SBC's. I wonder what the floppy controller in
> that can do? I am pretty sure it claimed compatibility with CP/M 8"
> disks. If so it can probably handle all various 5.25" formats as well.
> Looks like I may have a number of things to play with while I spend
> my summer stuck in the house.
Standard CP/M (8" SSSD) was FM at 250K data transfer rate
Most designers of such made an effort to keep it versatile.
Let's hope that they included MFM and data transfer rates of:
125K (5.25" single density (TRS80 model I and Early Osborne))
250K
500K (8" double density and 3.5"/5.25" 'High' density)
maybe even:
300K (5.25" 360K double density in a 360RPM 1.2M drive)
1000K (2.8M)
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