Data Sheet

868
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
32.8.8 Input Control
Name: INPUTCTRL
Offset: 0x10
Reset: 0x00000000
Property: Write-Protected, Write-Synchronized
z Bits 31:28 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z Bits 27:24 – GAIN[3:0]: Gain Factor Selection
These bits set the gain factor of the ADC gain stage according to the values shown in Table 32-12.
Table 32-12. Gain Factor Selection
Bit 3130292827262524
GAIN[3:0]
AccessRRRRR/WR/WR/WR/W
Reset00000000
Bit 2322212019181716
INPUTOFFSET[3:0] INPUTSCAN[3:0]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit 151413121110 9 8
MUXNEG[4:0]
Access R R R R/W R/W R/W R/W R/W
Reset00000000
Bit 76543210
MUXPOS[4:0]
Access R R R R/W R/W R/W R/W R/W
Reset00000000
GAIN[3:0] Name Description
0x0 1X 1x
0x1 2X 2x
0x2 4X 4x
0x3 8X 8x