Hi All, for the sound card Indigo I/O from EchoAudio I found some reference that it is using the DSP56361. But I cant find any info about this dsp. Can anyone tell the difference to the DSP56362 ? Thanks! P
dsp56362 versus dsp56361
Started by ●July 25, 2005
Reply by ●July 26, 20052005-07-26
The DSP56361 does not exist. Please look exactly if the named DSP on the Indigo I/O is a DSP56301. This would make sense since the '301 has a PCI interface that is useful for this application. The '362 is the first derivative of the '36x symphony series (designed especially for audio apps - they have an additional audio autput (DAX) that can be configured for AES3 or SP/DIF). This series will be probably replaced by the '37x series in the future. Nevertheless - the probability that the Indigo uses the DSP56371 is zero since this device is lacking the PCI interface. The '37x are lacking an external memory bus (external memory can be only interfaced by SPI/I2C) but have an additional filter coprocessor that is very useful for audio. One final question: Why do you ask this? Do you want to design your own hardware? Do you think it makes any difference to the end user which DSP derivative is desiged in this interface? The DSP core is absolutely identical with all DSP563xx derivatives - for this reason they are also object code compatible. The only difference is in the number and kind of interfaces that adapts them to the desired application. Hope this helps Christian p schrieb:> Hi All, > for the sound card Indigo I/O from EchoAudio I found some reference > that it is using the DSP56361. But I cant find any info about this dsp. > Can anyone tell the difference to the DSP56362 ? > Thanks! > P
Reply by ●July 26, 20052005-07-26
thanks for your reply. If you do a google search for "dsp56361" you will see it is referenced with linux drivers for pci audio cards. Further, there is generic driver code from Echo which explicitly mentions this DSP, it is sure no typo. As I couldnt find any info, I was just curious what might be special about this DSP. P
Reply by ●July 26, 20052005-07-26
I'd rather trust the chip manufacturer than somebody else (even Google) which products they have in their portfolio :-) http://www.freescale.com/webapp/sps/site/homepage.jsp?nodeId=012795 Regards Christian p schrieb:> thanks for your reply. > > If you do a google search for "dsp56361" you will see it is referenced > with linux drivers for pci audio cards. Further, there is generic > driver code from Echo which explicitly mentions this DSP, it is sure no > typo. > > As I couldnt find any info, I was just curious what might be special > about this DSP. > > P
Reply by ●August 8, 20052005-08-08
In <1122358775.848789.208410@z14g2000cwz.googlegroups.com> Christian Langen wrote:> The DSP56361 does not exist. Please look exactly if the named DSP on > the Indigo I/O is a DSP56301.Just because it's not a current product doesn't mean it doesn't exist. I have a DSP56361 right here on my hard drive--preliminary anyway, 2nd draft from back in March '99--and yes, it's out there in real products. I don't recall what the difference was between it and the '362, but it wasn't much, and the OP can probably use the '362 manual. Another thing to remember about chips is that manufacturers often continue to sell them for years to existing customers after removing them from their current product offering ("end of life").