help identifying unknown ISA card - test-drb@ccmp.vtda.org

20 May 2007

...
 From: ard at p850ug1.demon.co.uk (Tony Duell)

 You know, with a 8086 onboard, that thing has to have a ROM/PROM on
 it somewhere with firmware for the 8086.  Why not dump it and see if 
Why?

It would be entirely possible to have the software for the 8086 in the
RAM that's on that board. Load the RAM from the ISA bus, then enable the
8086 (say by de-assertign the reset pin) and let it run.

I have at least one DSP card for the ISA bus that had no ROM on it. Just
the (ROMless, I hasetn to add) DSP, a lot of high-speed RAM, the analogue
interface chip and buffer amplifiers and an ISA interface circuit.
 Hi
I have a Modem board with a DSP that has no ROM. It loads from
the system. If there is a ROM it would most likely have such a name.
Do remember that the 8086 was a full 16 bit bus. There would most likely
be 2 ROMs and the ascii may be split across the two to read as on contiguous
text from the bus.
Dwight

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