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Altera_Forum
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14 years ago

Stratix IV GX Pin Assignment

Hi, I'm working on the Stratix IV GX 230 board and I'm trying to use the Triple Speed Ethernet in RGMII mode with MDIO. I did everything well untill the moment I needed the PIN in order to co...
Altera_Forum's avatar
Altera_Forum
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14 years ago

From what I see you can only use the Marvel PHY on this board in SGMII mode and not RGMII.

As for the MDIO pins, connect mdc to ENET_MDC and make a small tristate output for ENET_MDIO: when mdio_oen is 0 it should be an output with the value mdio_out, and when mdio_oen is 1 it should be an input, and the value fed to mdio_in.