"3) Use the 5th to add the DREQ0 signal for (DMA Access Request, doubles =
I think having DMA on the 60 pin connector is useless because no address =
or data lines are here.
For this one I would rather see GPIO0 (IRQ0) or GPIO1 (IRQ1) brought out =
rather then DREQ0.=20
these IRQ pins have more utility as an interrupt source (wake from =
sleep) and alt reset function.
Using the "edge detect" only interrupts of GPIO 2-84 is a pain.