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Hello all, Does anyone out there know any tricks to determining the difference between the TMS and TMX versions of the C6211? Normally a chip version can be determined by the upper half of the CSR (the 8-bit Chip ID and 8-bit Rev ID)... but in this case it seems that the TMS and TMX 6211 have identical CSRs. Does anyone know another way to check it, or know of a hack (e.g testing for errata symptoms) that has been known to work? Any info would be appreciated. Donald Eubanks Signalogic, Inc. 9617 Wendell Rd. @ Skillman Dallas, TX 75241 214-343-0069 |
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TMS320C6211 vs. TMX320C6211
Started by ●May 17, 2001
Reply by ●May 22, 20012001-05-22
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It is my understanding that TI marks a chip TMX until all qualification testing has been completed. If no chip revisions are required, then the part is labelled TMS without requiring updates to the Chip ID or Rev. Andrew At 10:42 PM 5/17/01 +0000, wrote: >Hello all, > >Does anyone out there know any tricks to determining the difference >between the TMS and TMX versions of the C6211? Normally a chip >version can be determined by the upper half of the CSR (the 8-bit >Chip ID and 8-bit Rev ID)... but in this case it seems that the TMS >and TMX 6211 have identical CSRs. Does anyone know another way to >check it, or know of a hack (e.g testing for errata symptoms) that >has been known to work? Any info would be appreciated. >Donald Eubanks >Signalogic, Inc. >9617 Wendell Rd. @ Skillman >Dallas, TX 75241 >214-343-0069 > >_____________________________________ >Note: If you do a simple "reply" with your email client, only the author of >this message will receive your answer. You need to do a "reply all" if you >want your answer to be distributed to the entire group. > >_____________________________________ >About this discussion group: > >To Join: Send an email to > >To Post: Send an email to > >To Leave: Send an email to > >Archives: http://www.yahoogroups.com/group/c6x > >Other Groups: http://www.dsprelated.com >">http://docs.yahoo.com/info/terms/ > |
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Reply by ●May 22, 20012001-05-22
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It is true that the TMX parts are not completely qualified, whereas the TMS parts are completely qualified and supported. However, the chip revision is independant of the TMS/TMX classification. In the errata for the TMS320C6211 series, you can see that different problems occur on different revisions. Some occur only on early class parts (TMX), some occur only on later parts (TMS), and some occur on all revisions, regardless of TMS or TMX. The particular problem I am dealing with is documented as only affecting the TMX chips (revisions 1.0 and 1.1). The functions I perform work flawlessly on the TMS, and with a minor code change, they work flawlessly on the TMX... I just want the same code to run on both boards, which means I need to have dynamic board detection... Anyone know any smooth tricks (e.g. errata symptom detection) or know a place on the chip where I can get accurate revision ID and/or chip ID (besides the CSR)? Any help would be appreciated, -Donald Eubanks Signalogic, Inc. --- In c6x@y..., Andrew Elder <andrew_elder@b...> wrote: It is my understanding that TI marks a chip TMX until all qualification testing has been completed. If no chip revisions are required, then the part is labelled TMS without requiring updates to the Chip ID or Rev. |
Reply by ●May 26, 20012001-05-26
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Andrew- >It is my understanding that TI marks a chip TMX until all qualification >testing has been completed. If no chip revisions are required, then the >part is labelled TMS without requiring updates to the Chip ID or Rev. Maybe, but if the silicon actually *is* different, then why doesn't the CSR value change? For example, the TMX C6211 has a McBSP bug, the TMS C6211 fixes this bug. If it walks like a silicon change, talks like one, smells like one... Jeff Brower Signalogic >At 10:42 PM 5/17/01 +0000, wrote: >>Hello all, >> >>Does anyone out there know any tricks to determining the difference >>between the TMS and TMX versions of the C6211? Normally a chip >>version can be determined by the upper half of the CSR (the 8-bit >>Chip ID and 8-bit Rev ID)... but in this case it seems that the TMS >>and TMX 6211 have identical CSRs. Does anyone know another way to >>check it, or know of a hack (e.g testing for errata symptoms) that >>has been known to work? Any info would be appreciated. >> >> >>Donald Eubanks >>Signalogic, Inc. >>9617 Wendell Rd. @ Skillman >>Dallas, TX 75241 >>214-343-0069 |
