jbdigriz Posted June 25, 2017 Share Posted June 25, 2017 Looking for information on the TMS 9996 processor as used in early TI XDS emulator systems. Best I can tell it appears to be a version of the TMS9995 with a non-multiplexed, full 16 bit data bus, but I have no solid confirmation of this and I have not really dug into the emulator I have, which is non-functional. Even assuming I'm correct, there could be other differences from the 9995. I've looked high and low and found nothing other than a few comments from Karl Guttag in an online interview many years ago, that were not definitively confirming. Looks like the chip was never marketed and used strictly internally. So, does anyone have any documentation, or know where I could find it? Thanks, jbdigriz Quote Link to comment Share on other sites More sharing options...
jbdigriz Posted June 25, 2017 Author Share Posted June 25, 2017 Slight correction, the chip in my emulator is an SE9996, but I think that's just the development version of the TMS9996 part. Further correction welcome. Quote Link to comment Share on other sites More sharing options...
apersson850 Posted June 25, 2017 Share Posted June 25, 2017 Never heard of it. But it makes sense that they would have planned such a chip, just like there was both the 8088 and the 8086 from Intel. Quote Link to comment Share on other sites More sharing options...
+mizapf Posted June 25, 2017 Share Posted June 25, 2017 My "TI Pocket Guide" contains a description of the SBP 9989, but this is something different, right? Quote Link to comment Share on other sites More sharing options...
jbdigriz Posted June 25, 2017 Author Share Posted June 25, 2017 Yes, this is a 64-pin package like the 9900. Pic here: http://content.screencast.com/users/cpushack/folders/Jing/media/99bffdb5-f1f1-4350-a5e3-cba9264661cc/2010-06-04_1307.png Quote Link to comment Share on other sites More sharing options...
jbdigriz Posted June 25, 2017 Author Share Posted June 25, 2017 (edited) The SBP9989 is 64-pin, too, but it's bipolar logic, iirc. Anyway, I won't really know the differences without docs. Edited June 25, 2017 by jbdigriz Quote Link to comment Share on other sites More sharing options...
Stuart Posted June 25, 2017 Share Posted June 25, 2017 Have you seen this, which has a bit about the XDS emulator, and a few scant details of the TMS9996? http://bitsavers.trailing-edge.com/pdf/ti/TMS320xx/TMS320C14_TMS320E14_Users_Guide_1988.pdf 1 Quote Link to comment Share on other sites More sharing options...
jbdigriz Posted June 27, 2017 Author Share Posted June 27, 2017 Yes, used to have hardcopy even. Pretty scant, though. Quote Link to comment Share on other sites More sharing options...
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