| obviously you're not into baseband reversing, otherwise you would have known that for the past 10+ years, basebands were almost always RISC cpu and almost always ARM... moreover, all previous iterations of Intel basebands were custom ARM cores based around Infineon IP acquired by Intel to be competitive in the baseband market...you did not even read my document, because I said this about the old baseband version moreover, by the nature of baseband itself, it requires a CPU capable of real-time or near real-time processing, as a matter of fact other vendors are using Cortex-R CPU, which is an ARM cpu made for real-time os, giving you predictable timings, especially interrupt processing and memory access for example, Cortex-R gives you a special kind of memory, called TCM (Tightly-Coupled Memory) memory, which gives you predictable memory access timings, something that you cannot obtain with a simple cache by the way, Cortex-R is also used in WiFi chipsets, because the type of processing required is very similar (check the excellent writeup done by Google's Project Zero about this) so yes, it is interesting to see how Intel managed to implement this kind of features in an x86 CPU, which was never designed for such kind of requirements I suggest you take a look at the References in my document, they might provide some useful information on the matter of course if you're not interested in baseband reversing, then I guess you're right, it's not technically interesting material |