Forum Discussion
EV
New Contributor
7 years agoIf you want to operate at 1Gbps you'll likely have to set the RX & TX clock/data skew for your target board.
For the other configuration, I always program everything as I never rely on default values.
avib
Occasional Contributor
7 years agoEventually, we are going to use the Marvell 88E1512 . As I wrote in my first question:
According to the 88E1512 PHY's data sheet, it has a fixed delay of minimum 1.2 nS on its Receive Path (Output PHY to MAC), and -0.9 ns Setup time on Tx Path (Input MAC to PHY).
This delay time is fixed for the TX and RX RGMII path (not like the KSZ9021RN) and it is set by default.
Is that good enough, or an additional delay should be added on the PCB? If yes how much?
Thanks!