I am in the process of emulating this card in MAME. There is very limited information that I have been able to find online for this card.
I have the card "mostly" operational, but I'm having trouble figuring out what the 8253's are using for a clock source. If you have one of these cards, or have any more information, I would very much like to have it.
In particular, the clock sources on pin 9 and 18, and the outputs on pin 10 and 17 for each 8253 would be *very much* appreciated.
I have the card "mostly" operational, but I'm having trouble figuring out what the 8253's are using for a clock source. If you have one of these cards, or have any more information, I would very much like to have it.
In particular, the clock sources on pin 9 and 18, and the outputs on pin 10 and 17 for each 8253 would be *very much* appreciated.