40.5 Charge Pump Threshold
The Charge Pump Threshold (CPT) bit indicates whether or not VDD is at an acceptable
operating level. Charge pump hardware compares VDD to the threshold voltage
(VAUTO), which is set at 4.6V. If VDD is above
VAUTO, the CPT bit is set (CPT = 1
). If VDD
is below VAUTO, CPT is clear (CPT = 0
).