« on: December 27, 2022, 07:51:02 PM »
Hi Tumbleweed,
I did a bit of research and found this:
http://www.wonkity.com/~wblock/a4000hard/defibust.html"Next we consider the Buster chip. The Buster in the A3000, Rev 6 or Rev 7, is a well proven design. The difference between the two is only that there was a small bug in Rev 6 that caused it to fail at 16MHz, but it works fine at 25MHz. These are what we called Level I Busters; they don't support Zorro-3 DMA or Quick Interrupts, and they don't attempt to translate local bus burst cycles into Zorro-3 burst cycles."
Logged
A1200 in DIY Tower. 3.2 ROMs (softkicking 3.2.3), OS 3.2.3, CF card, CD RW and IDE to SD adapter running off the internal IDE port (using the A4000 4-port IDE adapter from Amigakit), Pistorm 32 lite with Pi4/2GB/Emu68 or Blizzard 1230-IV, with 32MB 60ns RAM and 50MHz 68882 FPU.
MorphOS on PowerMac G5 and ATI 9600 pro
