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Altera_Forum's avatar
Altera_Forum
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17 years ago

Auto-Negociation fails between two Ethernet Marvell PHYs (88E1111)

Hello, I need to connect two PCIe development board via the Ethernet Marvell PHYs (88E1111) in order to validate an UDP solution (I'm using the TSE core). The thing is, Auto-Negociation between th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Please do not multipost your question.

The auto-negotiation is done by the PHY chip, not the TSE IP. You can control the negotiation process through the PHY chip's MDIO registers.

Negotiating a half duplex link is rather odd though... If you connect your PC to another one, does it negotiate a full duplex? Did you try to change the cable? The PHY chip should negotiate a full duplex link by default, if the other side supports it.