29.5.2 Mux Control A

AC.MUXCTRLA controls Analog Comparator Muxes

Name:	MUXCTRLA
Offset:	0x02
Reset:	0x00
Property:	-


Bit	7	6	5	4	3	2	1	0
	INVERT			MUXPOS[1:0]			MUXNEG[1:0]
Access	R/W			R/W	R/W		R/W	R/W
Reset	0			0	0		0	0

Bit 7 – INVERT Invert AC Output

Writing a '1' to this bit enables inversion of the output of the AC. This effectively inverts the input to all the peripherals connected to the signal, and also affects the internal status signals.

Bits 4:3 – MUXPOS[1:0] Positive Input MUX Selection

Writing to this bit field selects the input signal to the positive input of the AC.

Value	Name	Description
0	AINP0	Positive Pin 0
1	AINP1	Positive Pin 1
1	AINP2	Positive Pin 2
1	AINP3	Positive Pin 3

Bits 1:0 – MUXNEG[1:0] Negative Input MUX Selection

Writing to this bit field selects the input signal to the negative input of the AC.

Value	Name	Description
0x0	AINN0	Negative Pin 0
0x1	AINN1	Negative Pin 1
0x2	VREF	Voltage Reference
0x3	DAC	DAC output. Instance n of the AC will use instance n of the DAC: for example AC0 will use DAC0 and AC1 will use DAC1.

tinyAVR 8-bit Microcontroller

29.5.2 Mux Control A

Bit 7 – INVERT Invert AC Output

Bits 4:3 – MUXPOS[1:0] Positive Input MUX Selection

Bits 1:0 – MUXNEG[1:0] Negative Input MUX Selection