Part Number: DP83822IF
We are now using TI's DP83822IF as a fiber optic solution. Now the ARM master has identified the 83822 chip, but the fiber part has not been able to establish a connection.
Our reference to TI's reference design is available in the attached file.
In addition, we set the phy strap according to the datasheet, but found that the reference design does not match the configuration and documentation, and the datasheet is also attached.
In the schematic, the COL pin is responsible for setting FX_EN, but only 2.2K pulldown is used, which can be understood as setting to mode 1, but the mode 1 in the datasheet is defined as FX_EN=0.


