atxmega192a1-cu ATMEL Corporation, atxmega192a1-cu Datasheet - Page 38

• Manufacturer Part Number: atxmega192a1-cu
• Description: Atxmega64a1 8/16 Bit Microcontroller With 64/128/192/256k Bytes In-system Programmable Flash
• Manufacturer: ATMEL Corporation

25. AC - Analog Comparator
25.1
25.2
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Features
Overview
ATxmega A1
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The XMEGA A1 features four Analog Comparators (AC). An Analog Comparator compares two
voltages, and the output indicates which input is largest. The Analog Comparator may be config-
ured to give interrupt requests and/or events upon several different combinations of input
change.
Both hysteresis and propagation delays may be adjusted in order to find the optimal operation
for each application.
The Analog Comparators are always grouped in pairs (AC0 and AC1) on each analog port. They
have identical behavior but separate control registers
PORTA and PORTB each have one AC pair. Notations are ACA and ACB.
Four Analog Comparators
Selectable Power vs. Speed
Selectable hysteresis
Analog Comparator output available on pin
Flexible Input Selection
Basic interrupt and event generation on
Window function interrupt and event generation on
– 0, 20 mV, 50 mV
– Rising edge
– Falling edge
– Toggle
– Signal above window
– Signal inside window
– Signal below window
8067A–AVR–02/08