Difference between revisions of "Dragon 32 Sound Extension Module"
From The Dragon Archive
m (Added price.) |
|||
Line 6: | Line 6: | ||
The sound chip can be operated via the new commands in BASIC provided in the cartridge ROM, or via the 0xFEFE and 0xFEFF addresses. | The sound chip can be operated via the new commands in BASIC provided in the cartridge ROM, or via the 0xFEFE and 0xFEFF addresses. | ||
+ | |||
+ | It was sold for £34.95. | ||
== Pictures == | == Pictures == |
Latest revision as of 23:57, 26 May 2023
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.
It was sold for £34.95.
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)