Datasheet

1028
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
41. Analog Comparator Controller (ACC)
41.1 Description
The Analog Comparator Controller (ACC) configures the analog comparator and generates an interrupt depending on
user settings. The analog comparator embeds two 8-to-1 multiplexers that generate two internal inputs. These inputs are
compared, resulting in a compare output. The hysteresis level, edge detection and polarity are configurable.
The ACC also generates a compare event which can be used by the Pulse Width Modulator (PWM).
Refer to Figure 41-1 on page 1028 for detailed schematics.
41.2 Embedded Characteristics
 Eight User Analog Inputs Selectable for Comparison
 Four Voltage References Selectable for Comparison: Temperature Sensor (TS), ADVREF, DAC0 and DAC1
 Interrupt Generation
 Compare Event Fault Generation for PWM
41.3 Block Diagram
Figure 41-1. Analog Comparator Controller Block Diagram
Mux
AD7
AD0
Mux
TS
AD3
ADVREF
DAC0
DAC1
AD0
+
-
inp
inn
Analog Comparator
on
bias
Regulator
AND
MCK
Synchro
+
Edge
Detect
Change Detect
+Mask Timer
INVSELMINUSSELPLUS ACEN
EDGETYP
SCO
CE
MASK
SELFS
SCO
PWM
PMC
MCK
HYSTISEL
Interrupt Controller
FE
User Interface
AND
AND
MCK
CE
on
on
on