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DMA Controller 8237

31 bytes added, 11:25, 23 February 2010
/* Usage in CPC */
Used by [[Magic Sound Board]] for [[Aleste 520EX]]:
Port F8D0h..F8DFh - DMA Controller
Clock source (sample rate) for channel 0..3 comes from two 8254 chips.
TC triggers NMI.
The 64K address space is broken to four virtual 16K banks, allowing to
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