Linux/AM3351: AM3351 & KSZ8863RLL (RMII)

Part Number:AM3351

Tool/software: Linux

Hi,

We have a custom design with AM3351 and KSZ8863RLL with RMII, used as a ethernet switch. (AM3351 MAC --> PHY KSZ8863). I have few questions:

1. Looking at other forum replies (https://e2e.ti.com/support/processors/f/791/p/649924/2393181#2393181, it seems that the timing is extremely tight for RMII - can you some elaborate the exact parameters that are being compared?

2. We also plan to use ethernet boot during manufacturing - does the ROM boot code support ethernet switch or will it be transparent and be considered as a normal PHY. (assuming the boot strap options for the PHY are setup correctly for operation without modification of internal registers on the PHY)

Thank you

Regards

Santhosh