Dragon 32 Sound Extension Module

The Dragon 32 Sound Extension Module is a cartridge by J.C.B. (Microsystems), that contains a General Instruments AY-3-8910 sound chip (Also found on Amstrad CPC, Spectrum+, +2 and +3, MSX, Atari ST and other machines).

This allows the Dragon to play interesting sound effects and complex chiptunes without taking all processor time.

The cartridge also adds two 8-bit I/O ports (provided also by the AY-3-8910).

The sound chip can be operated via the new commands in BASIC provided in the cartridge ROM, or via the 0xFEFE and 0xFEFF addresses.

Pictures

• Casing
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• PCB
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Manuals

• Version 1

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• Version 2

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Downloads

• Dragon 32 Sound Extension Module ROM
• Dragon 32 Sound Extension Module Sample Program (Zipped CAS and WAV files)
• Dragon 32 Sound Extension Module Manual v1 (Zipped .jpg files)
• Dragon 32 Sound Extension Module Manual v2 (Zipped .jpg files)