SAM4L Datasheet, PDF (964/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

ATSAM4L4/L2
37. Analog Comparator Interface (ACIFC)
Rev: 1.0.0.0
37.1 Features
• Controls an array of Analog Comparators
• Low power option
– Single shot mode support
• Window mode
– Detect inside/outside window
– Detect above/below window
• Interrupt
– On comparator result rising edge, falling edge, toggle, comparison done
– Inside window, outside window, toggle
– When startup time is over
• Peripheral events
– Comparators triggered by incoming peripheral events
– Configurable generated peripheral events
37.2 Overview
The Analog Comparator Interface (ACIFC) controls a number of Analog Comparators (AC) with
identical behavior. Each Analog Comparator compares two voltages and gives a compare out-
put depending on this comparison.
A specific AC is referred to as ACx where x is any number from 0 to n and n is the index of last
AC module (refer to the Module Configuration section at the end of this chapter for details).
The ACIFC can be configured in normal mode using each comparator independently or in win-
dow mode using defined comparator pairs (ACx and ACx+1) to observe a window.
The number of Analog Comparators implemented is device specific. Refer to the Module Config-
uration section for details.
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