Bus Mastering doesn't work on the IIfx PDS as told by me from the Designer of the Tokamac IIfx PDS card.
"Yes, the motherboard did require that we replace a PAL to enable functionality that Apple claimed worked but never actually tested (that the PDS slot could become a bus master)."
"Yes, the motherboard did require that we replace a PAL to enable functionality that Apple claimed worked but never actually tested (that the PDS slot could become a bus master)."