Hello,
Now we are using S32G274 in our design, I wonder if GMAC and PFE MAC1 can work simultaneously .
Accrding to the document about S32G Ethernet architecture,
However, in IOMUX sheet which is attached in reference manual, GMAC and PFE MAC1 share some pins, e.g TXD_O[0..3] share PE04..07 and RXD_I[0..3] share PE10..13.
My hardware colleague told me that GMAC and PFE MAC1 are unabel to be used simultaneously because the above pins are shared between two MACs.
Besides, S32G2 525FC-BGA was mentioned in the document, it described that "all 4 MACs can be used in parallel". Does it mean GMAC and PFE MAC1 can be used simultaneously on the special S32G2 chip?
Thanks & Best Regards
Michael
Solved! Go to Solution.
It works. The only limitation is not having GAMC & PFE_EMAC_1 on RGMII, one of that must use SGMII.
/Jan
Hi guys,
using GMAC together with PFE_EMAC_1 is, of course, possible. The only impossible combination is using RGMII on both MACs.
Upcomming BSP33 comes with EVB/RDB port mapping enhancement exactly to solve this issue.
In few words, PFE_EMAC_1 will be, by default, set for SGMII mode, what allows to use all MACs in time.
/Jan
Based on my team's design doc, PFE MAC1 will be disabled if GMAC is enabled. They cannot work together the same time.
Thanks, it is also a way that we are using S32G274.
It works. The only limitation is not having GAMC & PFE_EMAC_1 on RGMII, one of that must use SGMII.
/Jan
Agree
GMAC/SGMII and PFE1 with RGMII works OK at the same time on my side.