Difference between revisions of "SSI 2001"
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| − | {{ | + | {{Infobox Hardware |
| − | | Title = SSI-2001 | + | | Title = SSI-2001 |
| − | | Image = | + | | Image = SSI 2001.jpg |
| − | | Developer = Innovation Computer Corporation | + | | Developer = [[Innovation Computer Corporation]] |
| − | | Released = | + | | Released = 1989-04-?? |
| + | | Type = Sound Card | ||
| + | | Slot = 8-bit ISA | ||
| + | | Icon = SSI 2001 | ||
| + | | Platforms = {{HardwarePlatform|DOS|DOS}} | ||
}} | }} | ||
| − | The | + | The '''''SSI 2001''''' is a sound card that was manufactured by [[Innovation Computer Corporation]]. It is essentially a Commodore SID chip for PCs, in particular, the [[6581]]. The card retailed for around $130.00 and includes a mono RCA output jack and a game port. In addition, there are 3 banks of jumpers that allow you to enable or disable the joystick port, control the joystick sensitivity, and change the sound port address from its default 280<sub>hex</sub> to either 2A0<sub>hex</sub>, 2C0<sub>hex</sub> or 2E0<sub>hex</sub>. |
| − | + | While in use, the card consumes 32 consecutive I/O ports, the last 3 probably undefined, like on the C64. The 6581 is clocked using the 14.318180 MHz clock of the ISA bus. This clock signal is divided by the counter and flip flops on the board by 16 to produce a base frequency of 0.89488625 MHz. By contrast, the base frequency of the SID in an NTSC C64 is 1.02272714 MHz and a PAL C64 is 0.98524851 MHz. The POTX and POTY pins, which were used on the C64 to read mice and paddle movements, are not connected on the SSI 2001 board, since the PC has other ways to read them. | |
| − | Despite the popularity of SID | + | Despite the popularity of the SID in the [[Commodore 64]] scene, particularly American companies were already abandoning the C64, and cards that offered FM synthesis (including the [[AdLib|Ad Lib Music Synthesizer Card]]) were already on the market, so the SSI 2001 never caught on in the PC market and was only supported by a handful of games. The lack of support also caused a lack of production and only a couple of working cards are know to exist. |
| + | ==Games== | ||
| + | * [[:Category: Games That Use SSI 2001 For Music|Games That Use SSI 2001 For Music]]. | ||
| + | * [[:Category: Games That Use SSI 2001 For Sound|Games That Use SSI 2001 For Sound]]. | ||
| + | |||
| + | ==Picture Gallery== | ||
| + | <gallery> | ||
| + | SSI 2001.jpg|An early model. | ||
| + | SSI 2001 - Revision.jpg|A later model. | ||
| + | </gallery> | ||
| + | |||
| + | ==Emulation Status== | ||
| + | Emulation has been added to DOSBox unofficially, but to get support, you must rebuild DOSBox from source. The emulation is based on reSID. | ||
| − | == | + | ==Links== |
| − | * [ | + | * [http://nerdlypleasures.blogspot.com/2014/01/sid-and-dos-unlikely-but-true-bedfellows.html nerdlypleasures.blogspot.com/2014/01/sid-and-dos-unlikely-but-true-bedfellows.html] - Nerdly Pleasures. |
| − | * [ | + | * [https://archive.org/details/Computer_Gaming_World_Issue_63/page/n17 archive.org/details/Computer_Gaming_World_Issue_63/page/n17] - Comparison in Computer Gaming World Number 63, September 1989. |
Revision as of 16:49, 12 November 2020
| SSI-2001 | |
 |
|
| Developer: | Innovation Computer Corporation |
| Released: | 1989-04-?? |
| Type: | Sound Card |
| Slot: | 8-bit ISA |
| Icon: |  |
| Platforms: |  |
The SSI 2001 is a sound card that was manufactured by Innovation Computer Corporation. It is essentially a Commodore SID chip for PCs, in particular, the 6581. The card retailed for around $130.00 and includes a mono RCA output jack and a game port. In addition, there are 3 banks of jumpers that allow you to enable or disable the joystick port, control the joystick sensitivity, and change the sound port address from its default 280hex to either 2A0hex, 2C0hex or 2E0hex.
While in use, the card consumes 32 consecutive I/O ports, the last 3 probably undefined, like on the C64. The 6581 is clocked using the 14.318180 MHz clock of the ISA bus. This clock signal is divided by the counter and flip flops on the board by 16 to produce a base frequency of 0.89488625 MHz. By contrast, the base frequency of the SID in an NTSC C64 is 1.02272714 MHz and a PAL C64 is 0.98524851 MHz. The POTX and POTY pins, which were used on the C64 to read mice and paddle movements, are not connected on the SSI 2001 board, since the PC has other ways to read them.
Despite the popularity of the SID in the Commodore 64 scene, particularly American companies were already abandoning the C64, and cards that offered FM synthesis (including the Ad Lib Music Synthesizer Card) were already on the market, so the SSI 2001 never caught on in the PC market and was only supported by a handful of games. The lack of support also caused a lack of production and only a couple of working cards are know to exist.
Games
Picture Gallery
An early model.
A later model.
Emulation Status
Emulation has been added to DOSBox unofficially, but to get support, you must rebuild DOSBox from source. The emulation is based on reSID.
Links
- nerdlypleasures.blogspot.com/2014/01/sid-and-dos-unlikely-but-true-bedfellows.html - Nerdly Pleasures.
- archive.org/details/Computer_Gaming_World_Issue_63/page/n17 - Comparison in Computer Gaming World Number 63, September 1989.
