I read this in Wikipedia near the end of the RMII docs:
"Since the RMII standard neglected to stipulate that TX_EN should only be sampled on alternate clock cycles, it is not symmetric with CRS_DV and two RMII PHY devices cannot be connected back to back to form a repeater; this is possible, however, with the National DP83848 which supplies the decoded RX_DV as a supplemental signal in RMII mode [3]."
It seems to imply you can create a simple repeater with two PHY's "back to back" in MII mode. This would be useful for a new device we are working on that needs to daisy chain its Ethernet in and out. I can't find much info on how to do this, anyone done this and if so, how?
Thanks.