p.1205 of mpc8640rm.pdf describe the LTSSM of PCIE.What the detail of LTSSM,for example detect active(0) and detect active(1)?
Thank you!
If LTSSM polling pattern never exceeds 0x03:
-> The PCIe transmitter can’t detect the presence of the remote link partner’s receiver.
->> Check the AC coupling capacitor value (100nF), continuity of all components related to the link
What is the difference of detect active(0) and detect active(1)?
