Product Specs

Table Of Contents
39 LPCOMP Low power comparator
Page
408
39.3.7 REFSEL
Address offset: 0x508
Reference select
Bit number
Id
Reset 0x00000004
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
A
0
2
A
1
1
A
0
0
A
0
Id RW Field
Value Id
Value
Description
A RW REFSEL
Reference select
Ref1_8Vdd
0
VDD * 1/8 selected as reference
Ref2_8Vdd
1
VDD * 2/8 selected as reference
Ref3_8Vdd
2
VDD * 3/8 selected as reference
Ref4_8Vdd
3
VDD * 4/8 selected as reference
Ref5_8Vdd
4
VDD * 5/8 selected as reference
Ref6_8Vdd
5
VDD * 6/8 selected as reference
Ref7_8Vdd
6
VDD * 7/8 selected as reference
ARef
7
External analog reference selected
Ref1_16Vdd
8
VDD * 1/16 selected as reference
Ref3_16Vdd
9
VDD * 3/16 selected as reference
Ref5_16Vdd
10
VDD * 5/16 selected as reference
Ref7_16Vdd
11
VDD * 7/16 selected as reference
Ref9_16Vdd
12
VDD * 9/16 selected as reference
Ref11_16Vdd
13
VDD * 11/16 selected as reference
Ref13_16Vdd
14
VDD * 13/16 selected as reference
Ref15_16Vdd
15
VDD * 15/16 selected as reference
39.3.8 EXTREFSEL
Address offset: 0x50C
External reference select
Bit number
Id
Reset 0x00000000
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
A
0
Id RW Field
Value Id
Value
Description
A RW EXTREFSEL
External analog reference select
AnalogReference0
0
Use AIN0 as external analog reference
AnalogReference1
1
Use AIN1 as external analog reference
39.3.9 ANADETECT
Address offset: 0x520
Analog detect configuration
Bit number
Id
Reset 0x00000000
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
A
0
0
A
0
Id RW Field
Value Id
Value
Description
A RW ANADETECT
Analog detect configuration
Cross
0
Generate ANADETECT on crossing, both upward crossing and
downward crossing
Up
1
Generate ANADETECT on upward crossing only
Down
2
Generate ANADETECT on downward crossing only
39.3.10 HYST
Address offset: 0x538
Comparator hysteresis enable