Datasheets for Mediavision chipsets?

Discussion about old sound cards, MIDI devices and sound related accessories.

Datasheets for Mediavision chipsets?

Postby root42 » 2019-7-13 @ 18:32

While my Jazz16 card was out of its habitat, I wondered what the purpose of the three Mediavision ICs is that are on the card. Namely the MVA514, MVA516 and MVA1216. I couldn't find any datasheets. Any ideas?

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Re: Datasheets for Mediavision chipsets?

Postby Stiletto » 2019-7-15 @ 04:16

According to https://cateee.net/lkddb/web-lkddb/SND_JAZZ16.html:

digital chip MVD1216 (Jazz16), codec MVA416 (CS4216) and mixer MVA514 (ICS2514)


There's some information on two of these chips in the Logitech SoundMan Wave Technical Reference (Logitech changed the mixer for a Sierra SC18076 instead of the MVA514 (ICS2514)): http://www.bitsavers.org/pdf/logitech/SoundMan_Wave_Technical_Reference_Mar94.pdf
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Re: Datasheets for Mediavision chipsets?

Postby root42 » 2019-7-15 @ 07:47

Thanks. That is actually pretty useful. The mixer is still ondocumented then, but might be that there is code in some old Linux kernel for that. :)

EDIT: Here is at least code for detecting and setting up Jazz16 cards:
https://github.com/torvalds/linux/blob/ ... b/jazz16.c

EDIT: And the mixer is dealt with in the sb_mixer source:
https://github.com/torvalds/linux/blob/ ... xer.c#L748
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