Microchip Technology megaAVR 0 Series Manual page 404

27.5.1 Control A
Name: CTRLA
Offset: 0x00
Reset: 0x00
Property: -
Bit 7
RUNSTDBY
Access R/W
Reset 0
Bit 7 – RUNSTDBY Run in Standby Mode
Writing a '1' to this bit allows the AC to continue operation in Standby sleep mode. Since the clock is
stopped, interrupts and status flags are not updated.
Value Description
0 In Standby sleep mode, the peripheral is halted
1 In Standby sleep mode, the peripheral continues operation
Bit 6 – OUTEN Analog Comparator Output Pad Enable
Writing this bit to '1' makes the OUT signal available on the pin.
Bits 5:4 – INTMODE[1:0] Interrupt Modes
Writing to these bits selects what edges of the AC output triggers an interrupt request.
Value Name
0x0 BOTHEDGE
0x1 -
0x2 NEGEDGE
0x3 POSEDGE
Bit 3 – LPMODE Low-Power Mode
Writing a '1' to this bit reduces the current through the comparator. This reduces the power consumption
but increases the reaction time of the AC.
Value Description
0 Low-Power mode disabled
1 Low-Power mode enabled
Bits 2:1 – HYSMODE[1:0] Hysteresis Mode Select
Writing these bits select the hysteresis mode for the AC input.
Value Name
0x0 NONE
0x1 SMALL
0x2 MEDIUM
0x3 LARGE
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2018 Microchip Technology Inc.
6 5
OUTEN INTMODE[1:0]
R/W R/W
0 0
Description
Both negative and positive edge
Reserved
Negative edge
Positive edge
4 3
LPMODE
R/W R/W
0 0
Description
No hysteresis
Small hysteresis
Medium hysteresis
Large hysteresis
Datasheet Preliminary
®
megaAVR 0-Series
Analog Comparator (AC)
2 1
HYSMODE[1:0]
R/W R/W
0 0
DS40002015A-page 404
0
ENABLE
R/W
0