Hi all,
Quick question does anyone know of have knowlege of a product that used the following:-
1. IRQ Interface of the Tube Port,as no 2nd CPU I can find uses it, they have a jumper just in case to enable.
2. Additional address lines A3-A6 of the tube the ULA chip does not use them.
2. The Beeb Master 8Mhz and IRQ line , same again no 2nd CPU I can find uses them.
where they as just in case and no ones has implement them using it, no 2nd CPU schematic seems to use them unless it another product that is not a 2nd CPU.
thks
James
Quick question does anyone know of have knowlege of a product that used the following:-
1. IRQ Interface of the Tube Port,as no 2nd CPU I can find uses it, they have a jumper just in case to enable.
2. Additional address lines A3-A6 of the tube the ULA chip does not use them.
2. The Beeb Master 8Mhz and IRQ line , same again no 2nd CPU I can find uses them.
where they as just in case and no ones has implement them using it, no 2nd CPU schematic seems to use them unless it another product that is not a 2nd CPU.
thks
James
Statistics: Posted by HJimbo — Sat Apr 20, 2024 12:43 am