User manual

...the world's most energy friendly microcontrollers
2012-04-24 - Giant Gecko Family - d0053_Rev0.96 724
www.energymicro.com
Bit Name Reset Access Description
Connects pad to the negative input mux
12 PPEN 0 RW OPA2 Positive Pad Input Enable
Connects pad to the positive input mux
11 Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
10:8 RESINMUX 0x0 RW OPA2 Resistor Ladder Input Mux
These bits selects the source for the input mux to the resistor ladder
Value Mode Description
0 DISABLE Set for Unity Gain
1 OPA1INP Set for OPA1 input
2 NEGPAD NEG PAD connected
3 POSPAD POS PAD connected
4 VSS VSS connected
7:6 Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
5:4 NEGSEL 0x0 RW OPA2 inverting Input Mux
These bits selects the source for the inverting input on OPA2
Value Mode Description
0 DISABLE Input disabled
1 UG Unity Gain feedback path
2 OPATAP OPA2 Resistor ladder as input
3 NEGPAD Input from NEG PAD
3 Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
2:0 POSSEL 0x0 RW OPA2 non-inverting Input Mux
These bits selects the source for the non-inverting input on OPA2
Value Mode Description
0 DISABLE Input disabled
2 POSPAD POS PAD as input
3 OPA1INP OPA1 as input
4 OPATAP OPA0 Resistor ladder as input