Datasheet

1027
42023E–SAM–07/2013
ATSAM4L8/L4/L2
38.7.15 Calibration Register
Name:
CALIB
Access Type: Read/Write
Offset: 0x3C
Reset Value: 0x00000000
•
FCD: Flash Calibration Done
Set to one when CALIB and BIASCAL have been updated by the flash fuses after a reset.
1: The flash calibration will be redone after any reset
0: The flash calibration will only be redone after a power-on reset
• BIASCAL: Bias calibration
• BIASSEL: Select bias mode
1: Select bandgap bias
0: Select mixed bias
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
-------FCD
15 14 13 12 11 10 9 8
BIASCAL - - - BIASSEL
76543210
CALIB
BIASCAL Ptat current Bgap current Total current
0000 3.0 1.1 4.1
0001 3.0+0.75 1.1 4.85
0010 Default setting 3.0+1.5 1.1 5.6
0011 3.0+1.5+0.75 1.1 6.35
0100 3.0 1.1+1.1 5.2
0101 3.0+0.75 1.1+1.1 5.95
0110 3.0+1.5 1.1+1.1 6.7
0111 3.0+1.5+0.7 1.1+1.1 7.45
10XX Pure bandgap bias 0 5.5 5.5
11XX 0 5.5+1.1 6.6