Colorado Memory Systems Jumperless Tape Controller
cclist at sydex.com
Wed Jul 2 21:45:10 CDT 2008
> Date: Wed, 2 Jul 2008 06:57:09 -0700
> From: "Glen Slick"
> The Colorado Memory Systems Jumperless Tape Controller 026-328 PCB has
> a copyright date of 1990, which predates the ISAPNP specification by 4
> years so it must use a proprietary configuration method.
Went back through my notes--it's not the FC-10 or FC-20 from Colorado
that's ISA PNP--it's the Exabyte "Floppy Tape Accelerator", PCB
317235-000 that's the PNP one. Circa 1996, using an 82078. Unlike
the Colorado, there's no external drive connector. There are also
empty pads for what I suspect might be a data compression processor
While both the Exabyte and Colorado 2Mb accelerator cards are
nominally 16-bit ISA, the Exabyte uses only the 16-bit additional IRQ
lines, while the Colorado uses both the 16-bit data and DMA lines in
addition to the extra IRQs. Both cards use 48MHz XCOs.
The brief user documentation for both state that they can be used in
8-bit slots; but the Colorado specifies that data rates up to 1Mb/sec
are supported in 8-bit mode.
For what it's worth...
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