The GEM controller has several I/O interfaces and routing options:
- MIO - RGMII Interface Signals on PMC or LPD MIO pins
- EMIO - GMII/MII Interface Signals port interface signals
- MDIO Interface Signals on LPD MIO or PL EMIO
- Timestamp Unit Interface Signals on LPD MIO or PL EMIO or LPD clock controller