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[[Category:Clones]][[Category:Music and sound]]The MagicSound board from Patisonic is a 4-channel DMA sound expansion for the [[Aleste 520EX]] from the same company.

The '''Aleste 520EX''' is a rare CPC [[Clones|clone]] with 512Kbyte RAM, its [[Connector:Expansion port|expansion port ]] includes some additional pins allowing external hardware to access the 512K RAM via DMA. The '''MagicSound''' board is probably even rarer. It is , it's using the additional DMA pins on the Aleste expansion port, so it works only on the Aleste, not on normal CPCs. == I/O Map and NMI Overview ==  Port A10 A9 A8 A5 A3 A2 A1 A0 RW Expl. FXDX 0 X X 0 X X X X The board selected. F8DX 0 0 0 0 r r r r RW [[DMA Controller 8237]] rrrr is reg number D[7..0] Data F9DX 0 0 1 0 (1) 0 r r -W TIMER [[8253 chip|8254]] CHANNELS 0,1,2 rr is reg number D[7..0] Data F9DY 0 0 1 0 0 (1) r r -W TIMER [[8253 chip|8254]] CHANNELS 3, and DAC nn is reg number D[7..0] Data FADX 0 1 0 0 X X c c -W VOLUME CONTROL cc is channel number D[5..0] Volume FBDX 0 1 1 0 c c m m -W MAPPER cc is channel number mm is mapper's page register D[5..0] inverted page number After reset timers do not work until first write to it's regs After dma end ('tc' signal) the [[NMI]] to Z80 generated

<gallerycaption="A Magic Sound board (with all components installed)">

File:Magic-sound-schematic1.gif|Schematic 1/2(digital part)File:Magic-sound-schematic2.gif|Schematic 2/2(analog part)