CTRLA

Control A

Name:: CTRLA
Offset:: 0x00
Reset:: 0x00
Access:: -

Bit7	6	5	4	3	2	1	0
RUNSTDBY	OUTEN	INTMODE[1:0]		LPMODE	HYSMODE[1:0]		ENABLE
AccessR/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset0	0	0	0	0	0	0	0

Bit 7 – RUNSTDBY: Run in Standby Mode

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

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

Interrupt Modes

Writing to these bits selects which edges of the AC output triggers an interrupt request.

Value	Name	Description
0x0	BOTHEDGE	Both negative and positive edge
0x1	-	Reserved
0x2	NEGEDGE	Negative edge
0x3	POSEDGE	Positive edge

Bit 3 – LPMODE: Low-Power Mode

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

Hysteresis Mode Select

Writing these bits selects the Hysteresis mode for the AC input.

Value	Name	Description
0x0	NONE	No hysteresis
0x1	SMALL	Small hysteresis
0x2	MEDIUM	Medium hysteresis
0x3	LARGE	Large hysteresis

Bit 0 – ENABLE: Enable AC

Enable AC

Writing this bit to '1' enables the AC.