SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
The PHY reset signal is generated out of the ESC module. If required to release both, the PHY and ESC module synchronous out of reset, this signal can be used. Since there are no pull devices active on the MCU during and after reset, a pull down resistor must be added on this signal on the board level.
In some case, PHYs can be released from reset after releasing the ESC module. To generate a delay, the pin for nPHY_RESET can be used as an I/O and must be switched later to the alternate output function.