Datasheet

SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
1368
 AFEMODE: AFE Running Mode
 TAG: TAG of the AFEC_LDCR
0: Clears CHNB in AFEC_LDCR
1: Appends the channel number to the conversion result in AFEC_LDCR
 STM: Single Trigger Mode
0: Multiple triggers are required to get an averaged result
1: Only a Single Trigger is required to get an averaged value
 SIGNMODE: Sign Mode
Note: If conversion results are signed and resolution is below 16-bit, the sign is extended up to the bit 15 (for example, 0xF43 for 12-bit
resolution will be read as 0xFF43 and 0x467 will be read as 0x0467). See Section 45.6.5 “Conversion Results Format”.
3 OSR16 14-bit resolution, AFEC sample rate divided by 16 (averaging).
4OSR64 15-bit resolution, AFEC sample rate divided by 64 (averaging).
5OSR256 16-bit resolution, AFEC sample rate divided by 256 (averaging).
Value Name Description
0NORMALNormal mode of operation.
1OFFSET_ERROR Offset Error mode to measure the offset error.
2 GAIN_ERROR_HIGH
Gain Error mode to measure the gain error.
3 GAIN_ERROR_LOW
Value Name Description
0 SE_UNSG_DF_SIGN Single-Ended Channels: Unsigned conversions.
Differential Channels: Signed conversions.
1 SE_SIGN_DF_UNSG Si
ngle-Ended Channels: Signed conversions.
Diff
erential Channels: Unsigned conversions.
2 ALL_UNSIGNED All Channels: Unsigned conversions.
3 ALL_SIGNED All Channels: Signed conversions.
Value Name Description