CTRLA

Control A

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

Bit7	6	5	4	3	2	1	0
	ADC0REFSEL[2:0]				AC0REFSEL[2:0]
Access	R/W	R/W	R/W		R/W	R/W	R/W
Reset	0	0	0		0	0	0

Bits 6:4 – ADC0REFSEL[2:0]: ADC0 Reference Select

ADC0 Reference Select

These bits select the reference voltage for ADC0.

Note: Refer to VREF in the Electrical Characteristics section for further details.

Value	Name	Description
0x0	0V55	0.55V internal reference
0x1	1V1	1.1V internal reference
0x2	2V5	2.5V internal reference
0x3	4V3	4.3V internal reference
0x4	1V5	1.5V internal reference
Other	-	Reserved

Bits 2:0 – AC0REFSEL[2:0]: AC0 Reference Select

AC0 Reference Select

These bits select the reference voltage for AC0.

Note: Refer to VREF in the Electrical Characteristics section for further details.

Value	Name	Description
0x0	0V55	0.55V internal reference
0x1	1V1	1.1V internal reference
0x2	2V5	2.5V internal reference
0x3	4V3	4.3V internal reference
0x4	1V5	1.5V internal reference
0x5	-	Reserved
0x6	-	Reserved
0x7	AVDD	AVDD