Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Data Sheet
Product codes
ATSAMD20-XPRO
509
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
28.8.17 Gain Correction
Name:
GAINCORR
Offset:
0x24
Reset:
0x0000
Property:
Write-Protected
z
Bits 15:12 – 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.
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 11:0 – GAINCORR[11:0]: Gain Correction Value
If the CTRLB.CORREN bit is one, these bits define how the ADC conversion result is compensated for gain error
before being written to the result register. The gain correction is a fractional value, a 1-bit integer plus an 11-bit
fraction, and therefore ½ <= GAINCORR < 2. GAINCORR values range from 0.10000000000 to 1.11111111111.
If the CTRLB.CORREN bit is one, these bits define how the ADC conversion result is compensated for gain error
before being written to the result register. The gain correction is a fractional value, a 1-bit integer plus an 11-bit
fraction, and therefore ½ <= GAINCORR < 2. GAINCORR values range from 0.10000000000 to 1.11111111111.
Bit
15
14
13
12
11
10
9
8
GAINCORR[11:8]
Access
R
R
R
R
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
GAINCORR[7:0]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0