The [[Magic Sound Board]] for [[Aleste 520EX]] contains two 8254 chips:
F9D4h Magic Sound Board - 2nd 8254 - Timer 0 (DMA Channel 3) (W)
F9D5h Magic Sound Board - 2nd 8254 - Timer 1 (DAC Clock) (W)
F9D6h Magic Sound Board - 2nd 8254 - Timer 2 (not used) (W)
F9D7h Magic Sound Board - 2nd 8254 - Timer 0-2 Control (W)
F9D8h Magic Sound Board - 1st 8254 - Timer 0 (DMA Channel 0) (W)
F9D9h Magic Sound Board - 1st 8254 - Timer 1 (DMA Channel 1) (W)
F9DAh Magic Sound Board - 1st 8254 - Timer 2 (DMA Channel 2) (W)
F9DBh Magic Sound Board - 1st 8254 - Timer 0-2 Control (W)
== Timer Registers ==