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ATSAM4S-XPLD
967
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
40.
Analog Comparator Controller (ACC)
40.1
Description
The Analog Comparator Controller (ACC) configures the Analog Comparator and generates an interrupt according to the
user settings. The analog comparator embeds 8 to 1 multiplexers on both inputs.
user settings. The analog comparator embeds 8 to 1 multiplexers on both inputs.
The Analog Comparator compares two voltages and the result of this comparison gives a compare output. The user can
select a high-speed or low-power option. Additionally, the hysteresis level, edge detection and polarity are configurable.
select a high-speed or low-power option. Additionally, the hysteresis level, edge detection and polarity are configurable.
The ACC can also generate a compare event which can be used by the PWM.
for detailed schematics.
40.2
Embedded Characteristics
8 User Analog Inputs Selectable for Comparison
4 Voltage References Selectable for Comparison: Temperature Sensor, ADVREF, DAC0 and DAC1
Interrupt Generation
Compare Event Fault Generation for PWM
40.3
Block Diagram
Figure 40-1. Analog Comparator Controller Block Diagram
Mux
AD7
AD0
Mux
TS
AD3
ADVREF
DAC0
DAC1
AD0
+
-
inp
inn
Analog Comparator
isel
oncomp
hyst
bias
AND
AND
MCK
Synchro
+
Edge
Detect
Synchro
+
Edge
Detect
ACC_MR, ACC_ACR
Change Detect
+Mask Timer
Change Detect
+Mask Timer
INV
SELMINUS
SELPLUS
ACEN
EDGETYP
SCO
CE
MASK
SELFS
SCO
MCK
HYST
ISEL
Interrupt Controller
FE
User Interface