Dragon 32 Sound Extension Module
From The Dragon Archive
Revision as of 16:55, 17 August 2015 by Jedie (talk | contribs) (Category:Documentation Category:Hardware)
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 128, +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
Screenshot
IC Parts Lists
IC list (with Datasheets)
Part Number | Description | Datasheet |
2732 | 4Kb EPROM | (pdf) |
AY-3-8910 | Programmable Sound Generator | (pdf) |
SN74LS04N | Hex inverters | (pdf) |
SN74LS08N | Quadruple 2-Input Positive-AND Gates | (pdf) |
SN74LS27 | Triple 3-Input NOR Gate | (pdf) |
SN74LS30 | 8-input Positive NAND Gate | (pdf) |
SN74LS138 | Decoder/ Demultiplexer | (pdf) |
Manuals
- Version 1
- Version 2
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)