EFM32WG Datasheet, PDF (723/834 Pages) List of Unclassifed Manufacturers – The EFM32WG Wonder Gecko is the ideal choice for demanding 8-, 16-, and 32-bit energy sensitive applications.

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Bit
Name
Reset
Access Description
2:0
POSSEL
0x0
RW
OPA1 non-inverting Input Mux
These bits selects the source for the non-inverting input on OPA1
Value
0
1
2
3
4
Mode
DISABLE
DAC
POSPAD
OPA0INP
OPATAP
Description
Input disabled
DAC as input
POS PAD as input
OPA0 as input
OPA 1 Resistor ladder as input
29.5.18 DACn_OPA2MUX - Operational Amplifier Mux Configuration
Register
Offset
0x064
Reset
Access
Bit Position
Name
Bit
31
30:28
27
26
25:23
22
21:16
15:14
13
Name
Reset
Access Description
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
RESSEL
0x0
RW
Configures the resistor ladder tap for OPA2.
OPA2 Resistor Ladder Select
Value
0
1
2
3
4
5
6
7
Mode
RES0
RES1
RES2
RES3
RES4
RES5
RES6
RES7
Resistor Value
R2 = 1/3 x R1
R2 = R1
R2 = 1 2/3 x R1
R2 = 2 x R1
R2 = 3 x R1
R2 = 4 1/3 x R1
R2 = 7 x R1
R2 = 15 x R1
Inverting Mode Gain (-R2/R1) Non-inverting Mode Gain (1+(R2/
R1)
-1/3
1 1/3
-1
2
-1 2/3
2 2/3
-2 1/5
3 1/5
-3
4
-4 1/3
5 1/3
-7
8
-15
16
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
NEXTOUT
0
RW
OPA2 Next Enable
OPA2 does not have an next output.
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
OUTMODE
0
RW
Output Select
Enables OPA2 main output.
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
OUTPEN
0x0
Select location for main output
RW
OPA2 Output Location
Value
1
2
Mode
OUT0
OUT1
Description
Main Output 0
Main Output 1
NPEN
0
RW
OPA2 Negative Pad Input Enable
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
723
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