Bob,

The pullup is intended to be weak so says the linked reference.

About 165k.  Designed for 20ua pull.

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/914671/tms570ls3137-tms570ls3137-reset-state-pull-up-down-values-for-tms570

Jim McCullers

WA4CWI