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Mpeg decoder datasheets
Posted: Tue Feb 03, 2009 4:47 pm
by angelheart
hi
Im looking for the developer documentation for the
C-cube CL-450 Mpeg 1 decoder chip and any technical info related.
CD-I player circuit diagrams would also help.
I looked all over the net but cannot find the info.
thanks
Posted: Fri Feb 06, 2009 12:30 am
by cdifan
Do I detect a fledling CD-i emulator programmer here
I don't think there is much public info on most CD-i chips, and believe me, I looked hard! About the only ones I've been able to find are the VDSC and the 68070 CPU.
CD-i player schematics won't help you much, there are too many undocumented custom chips on the boards. I've gotten a nearly complete set, mainly so I could find out what particular chips are on each board. There is some company that sells CD-i service manuals.
Posted: Sat Sep 12, 2009 11:56 pm
by Stiletto
I worked really hard on this project on behalf of Toni Wilen of WinUAE fame.
As a result, you may find the C-Cube CL450 manual here:
http://mess.redump.net/datasheets:c-cube
- Stiletto
http://www.mamedev.org
Posted: Mon Sep 14, 2009 11:50 pm
by cdifan
I've taken a look at the C-Cube documentation but it doesn't match anything I've learned from disassembling the CD-i Digital Video Cartridge ROMs (all models).
The ICDIA site lists the 22ER9143 as having a C-Cube chipset but I have been unable to confirm this in any way.
Posted: Thu Sep 17, 2009 8:38 am
by Devin
I think I have a 9143 around here somewhere, is it a matter of disassembly to confirm?
Posted: Thu Sep 17, 2009 4:26 pm
by cdifan
That would be useful but I don't really think it matters to me; the inner workings of the DVC drivers are too different from these CL450 docs.
Of course, it could be some other C-Cube chip...
Posted: Mon Oct 19, 2009 9:57 pm
by cdifan
Devin wrote:I think I have a 9143 around here somewhere, is it a matter of disassembly to confirm?
Hmm, the fact that you're talking about disassembly probably means it isn't an 22ER9143, as these are supposed to be pre-production prototypes that probably didn't come in a housing at all.
But it's starting to be a
hot issue... So if you can find it, please?