33.6.9 Input Multiplexer Control

Name:	INPUTCTRL
Offset:	0x28
Reset:	0x00000000
Property:	Local Write-Protection


Bit	31	30	29	28	27	26	25	24

Access
Reset


Bit	23	22	21	20	19	18	17	16

Access
Reset


Bit	15	14	13	12	11	10	9	8
		MUXPOS[6:0]
Access		R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset		0	0	0	0	0	0	0


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

Bits 14:8 – MUXPOS[6:0] Positive Input Multiplexer

This bit field controls which analog input is connected to the positive input of the ADC. Changing this setting may require a settling time. Refer to the Electrical Characteristics chapter for further details.

Value	Name	Description
0x2	AIN2	ADC input 2
0x3	AIN3	ADC input 3
0x4	AIN4	ADC input 4
0x5	AIN5	ADC input 5
0x6	AIN6	ADC input 6
0x7	AIN7	ADC input 7
0x10	AIN16	ADC input 16
0x11	AIN17	ADC input 17
0x12	AIN18	ADC input 18
0x13	AIN19	ADC input 19
0x14	AIN20	ADC input 20
0x15	AIN21	ADC input 21
0x16	AIN22	ADC input 22
0x17	AIN23	ADC input 23
0x18	AIN24	ADC input 24
0x19	AIN25	ADC input 25
0x1A	AIN26	ADC input 26
0x1B	AIN27	ADC input 27
0x1C	AIN28	ADC input 28
0x1D	AIN29	ADC input 29
0x1F	AIN31	ADC input 31
0x28	AIN40	ADC input 40
0x29	AIN41	ADC input 41
0x2A	AIN42	ADC input 42
0x2B	AIN43	ADC input 43
0x2C	AIN44	ADC input 44
0x2D	AIN45	ADC input 45
0x2E	AIN46	ADC input 46
0x2F	AIN47	ADC input 47
0x60	GND	Ground
0x61	VDDCOREDIV4	Internally generated core supply voltage divided by four
0x62	TEMPSENSE	Temperature sensor
0x64	VDDIODIV10	VDDIO divided by 10
0x65	VDDIO2DIV10	VDDIO2 divided by 10
0x69	ACVREFSCALE0	AC COMP0 Voltage Reference Scaler Output
0x6A	ACVREFSCALE1	AC COMP1 Voltage Reference Scaler Output
0x7E	PTC	Peripheral Touch Controller signal
Other	-	Reserved

Bits 6:0 – MUXNEG[6:0] Negative Input Multiplexer

This bit field controls which analog input is connected to the negative input of the ADC. Changing this setting may require a settling time. Refer to the Electrical Characteristics chapter for further details.

Value	Name	Description
0x2	AIN2	ADC input 2
0x3	AIN3	ADC input 3
0x4	AIN4	ADC input 4
0x5	AIN5	ADC input 5
0x6	AIN6	ADC input 6
0x7	AIN7	ADC input 7
0x10	AIN16	ADC input 16
0x11	AIN17	ADC input 17
0x12	AIN18	ADC input 18
0x13	AIN19	ADC input 19
0x14	AIN20	ADC input 20
0x15	AIN21	ADC input 21
0x16	AIN22	ADC input 22
0x17	AIN23	ADC input 23
0x18	AIN24	ADC input 24
0x19	AIN25	ADC input 25
0x1A	AIN26	ADC input 26
0x1B	AIN27	ADC input 27
0x1C	AIN28	ADC input 28
0x1D	AIN29	ADC input 29
0x1F	AIN31	ADC input 31
0x28	AIN40	ADC input 40
0x29	AIN41	ADC input 41
0x2A	AIN42	ADC input 42
0x2B	AIN43	ADC input 43
0x2C	AIN44	ADC input 44
0x2D	AIN45	ADC input 45
0x2E	AIN46	ADC input 46
0x2F	AIN47	ADC input 47
0x60	GND	Ground
0x61	VREFP	Positive voltage reference
Other	-	Reserved