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Hello,
My customer is looking to do a reverse loopback to test the Ethernet link between two 10/100 systems using the DP83640.
They are setting register 0x17 bit 8 PMD_LOOP to do this.
Where in the PHY does the loopback occur?
Hi Ivan,
The reverse loopback occurs at the internal MII block of the PHY.
Regards,
Justin