User manual
...the world's most energy friendly microcontrollers
2012-04-24 - Giant Gecko Family - d0053_Rev0.96 667
www.energymicro.com
Bit Name Reset Access Description
Value Mode Description
0 4CYCLES 4 HFPERCLK cycles
1 8CYCLES 8 HFPERCLK cycles
2 16CYCLES 16 HFPERCLK cycles
3 32CYCLES 32 HFPERCLK cycles
4 64CYCLES 64 HFPERCLK cycles
5 128CYCLES 128 HFPERCLK cycles
6 256CYCLES 256 HFPERCLK cycles
7 512CYCLES 512 HFPERCLK cycles
7 Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
6:4 HYSTSEL 0x0 RW Hysteresis Select
Select hysteresis level. The hysteresis levels can vary, please see the electrical characteristics for the device for more information.
Value Mode Description
0 HYST0 No hysteresis
1 HYST1 ~15 mV hysteresis
2 HYST2 ~22 mV hysteresis
3 HYST3 ~29 mV hysteresis
4 HYST4 ~36 mV hysteresis
5 HYST5 ~43 mV hysteresis
6 HYST6 ~50 mV hysteresis
7 HYST7 ~57 mV hysteresis
3 GPIOINV 0 RW Comparator GPIO Output Invert
Set this bit to 1 to invert the comparator alternate function output to GPIO.
Value Mode Description
0 NOTINV The comparator output to GPIO is not inverted
1 INV The comparator output to GPIO is inverted
2 INACTVAL 0 RW Inactive Value
The value of this bit is used as the comparator output when the comparator is inactive.
Value Mode Description
0 LOW The inactive value is 0
1 HIGH The inactive state is 1
1 MUXEN 0 RW Input Mux Enable
Enable Input Mux. Setting the EN bit will also enable the input mux.
0 EN 0 RW Analog Comparator Enable
Enable/disable analog comparator.
26.5.2 ACMPn_INPUTSEL - Input Selection Register
Offset Bit Position
0x004
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reset
0x0
0
1
0x00
0x8
0x0
Access
RW
RW
RW
RW
RW
RW
Name
CSRESSEL
CSRESEN
LPREF
VDDLEVEL
NEGSEL
POSSEL
Bit Name Reset Access Description
31:30 Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)