Does the TI BOOTROM clear the POR bit in the RESC register?
Section 3.3.1 "Reset Sources" of SPRUHX5F states, "After a reset, the reset cause register (RESC) is updated with the reset cause. The bits in this register maintain their state across multiple resets. They can only be cleared by a power-on reset (POR) or by writing ones to the register".
However, Section 3.3.3 "Power-On Reset (POR)" states, "After a POR, the POR and XRSn bits in RESC are set. These bits are then cleared by the boot ROM."
Why does the BOOTROM clear POR bit in the RESC register? That makes the bit unusable to our application software. Does the BOOTROM really clear the POR bit in the RESC register?
Thanks.
Eric