AMD expects the use of the TI DP159 Retimer along with the DisplayPort RX solution. The DP159 as a retimer provides better SI features. As a retimer, the DP159 removes the random and ISI jitter from video source. The DP159 configuration is controlled through an I2C interface. The DisplayPort RX design needs an external I2C controller to configure the DP159 Retimer. For more details, refer to the SNx5DP159_Product_Preview.
Note: The IIC controller needs to work at 400 kHz or
higher speed.
For details on reference clock requirements and its connectivity, see Clocking.
Figure 1. DP159 Retimer