Hi,
We are plannig to develop a board using 100-pin LPC54606 and add ethernet communication with KSZ8091RNB RMII phy.
We already have a similar product using LPC4078 processor, however, I notice that RMII pins are different on these processors. For LPC4078 we use the CRS_DV MAC pin, witch is missing on LPC546x. We also tried out to use RX_DV pin for this function on LPC4078 without success.
It is possible to use LPC546x in RMII mode? We are not sure about using the RX_DV pin for the same role of CRS_DV.
Best regards,
Renê
Solved! Go to Solution.
Yes is possible to use LPC546x in RMII mode.
As you could check, in our schematic for the LPCxpresso546x,
the LAN8720A-CP PHY, which supports the RMII MAC interface, is implemented among the LPC54608 RMII interface.
Please note that in the schematic design the ENET_RX_DV pin of the LPC546x is connected to the CRS_DV pin of the PHY.
Best regards, Diego.
Yes is possible to use LPC546x in RMII mode.
As you could check, in our schematic for the LPCxpresso546x,
the LAN8720A-CP PHY, which supports the RMII MAC interface, is implemented among the LPC54608 RMII interface.
Please note that in the schematic design the ENET_RX_DV pin of the LPC546x is connected to the CRS_DV pin of the PHY.
Best regards, Diego.
Thanks for your help, Diego!
We will try it out on KSZ8091 PHY.