For i.MX8 Quad Max there is only one pin for setting the impedance of PCIE and SATA: PCIE_REXT
As SATA and PCIE using different differential impedance i think there is no "optimum" for the impedance.
What is the recommendation for PCIE_REXT when using two PCIE-Lanes and one SATA.?
Can we use 85 Ohm for driver but routing with 100 Ohm from SATA specification?