Used by [[Magic Sound Board]] for [[Aleste 520EX]]:
Port F8D0h..F8DFh - DMA Controller Registers 00h..0Fh
Clock source (sample rate) for channel 0..3 comes from two [[8253 chip|8254 chips]].
TC triggers NMI.
The 64K address space is broken to four virtual 16K banks, allowing to