SPRZ423J October 2014 – March 2023 TMS320F28075 , TMS320F28075-Q1 , TMS320F28076
XRS may Toggle During Power Up
B
During device power up, the XRS pin may toggle high prematurely. After the VDDIO and VDD supplies reach the recommended operation conditions, the XRS pin behavior will be per the pin description. This is only an issue with the external state of the XRS pin. Internally, the device will be held in reset by the POR logic until the supplies are within an acceptable range and XRS is high.
Disregard XRS activity on the board prior to supplies reaching recommended operating conditions.