Hi Richard,
If you mean the hardware assisted (CLC) version, then yes, I've seen it but have not tried it nor have I tried to understand exactly how it works.
I think that sort of approach would start to make sense if used on something like a K42 type device making use of its DMA - which happens to be the device sitting on my breadboard...

And yeah, some treat them interchangable but there's a clear difference in the actual specification. I like to stick to specifications when possible :-)