We've seen how PCIe standards continue to evolve and increase in throughput. What about the mobile ecosystem?
The PCIe Special Interest Group Developers Conference recently turned its attention to mobile express or M-PCIe. On June 25, the organization announced its work on the Mobile PCIe specification. The new spec allows PCIe architecture to operate over the MIPI Alliance's M-PHY physical layer.
M-PCIe is really an offshoot of PCIe, because it keeps the PCIe protocol stack but replaces the physical layer with the M-PHY standard from MIPI Alliance. Jacek Duda from Cadence wrote in a Design and Reuse blog that the MIPI Alliance is "known for the introduction of over 30 specifications targeted for mobile platforms, and has managed to do this in just 10 years." Confidence seems high regarding the MIPI/PCIe pairing.
I discussed PCIe challenges in a blog post this month. Ransom Stephens looked at M-PCIe in a post for a sister site, EDN.
Do you have experience with M-PHY? Any advice to those who will need to implement and test it?