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Original question:

DP83848I: Question about the MII Transmit DP83848N

DP83848I: Question about the MII Transmit DP83848N

Vickers
Intellectual 980 points

Part Number: DP83848I

Hi Geet,

We don't understand.

All of TI's PHYs require MII's TX_CLK to TXD0 to require min 10ns?

According to the standard, in the MII mode, TX_CLK is sent by the PHY to the MAC, and the TXD of the MAC is delayed by Tov (0ns-25ns). For example, if the MAC outputs TXD after 2 ns, then the 10 ns requirement of the PHY cannot be met.