SNLA246B October 2015 – December 2022 DP83867CR , DP83867CS , DP83867E , DP83867IR , DP83867IS
With the PHY powered and connected to a link partner, the following registers can be read from to determine the health of the link:
Channel | Register Address |
---|---|
A | 0x225 |
B | 0x265 |
C | 0x2A5 |
D | 0x2E5 |
For a given channel, read the register value to determine the MSE (Mean Square Error), convert to decimal, and refer to the following table to determine link quality:
Link Quality | MSE Range |
---|---|
Excellent | < 522 |
Good | 522 - 827 |
Poor | > 827 |
For information on how to read and write registers in the extended register space, please refer to Tools.