The comparator peripheral (COMP) compares one input voltage (VIN+) against another input
voltage (VIN-). VIN+ can be derived from an analog input pin (AIN0 to
AIN7). VIN- can be derived from multiple sources depending on the operation
mode of the comparator.
The main features of COMP are the following:
Input range from 0 V to VDD
Single-ended mode
Fully flexible hysteresis using a 64-level reference ladder
Differential mode
Configurable hysteresis
Reference inputs (VREF)
External reference from AIN0 to AIN7 (between 0
V and VDD)
Internal VDD reference
1.2 V internal reference
Two speed/power consumption modes, low-power and high-speed
Single-pin capacitive sensor support
Event generation on output changes
UP event when VIN+ rises above VIN- (VIN+ > VIN-)
DOWN event when VIN+ falls below VIN- (VIN+ < VIN-)
CROSS event on VIN+ and VIN- crossing
READY event on core and internal reference (if used) ready