SNLA417 January 2023 DP83TC812R-Q1 , DP83TC812S-Q1
A critical time to minimize is the MCU boot-up time specified for a system. This time is important because the PHY master configuration does not start until the MCU is booted.
In addition to optimizing the software used for an MCU as thoroughly as possible, use the fast boot option of the MCU, if the feature is available. For example, the AM273x-Q1 can decrease the boot-up time by: