Data Sheet

196
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
16.8.11 DFLL48M Value
Name: DFLLVAL
Offset: 0x28
Reset: 0x00000000
Property: Read-Synchronized, Write-Protected
z Bits 31:16 – DIFF[15:0]: Multiplication Ratio Difference
In closed-loop mode (DFLLCTRL.MODE is written to one), this bit group indicates the difference between the ideal
number of DFLL cycles and the counted number of cycles. This value is not updated in open-loop mode, and
should be considered invalid in that case.
z Bits 15:10 – COARSE[5:0]: Coarse Value
Set the value of the Coarse Calibration register. In closed-loop mode, this field is read-only.
z Bits 9:0 – FINE[9:0]: Fine Value
Set the value of the Fine Calibration register. In closed-loop mode, this field is read-only.
Bit 3130292827262524
DIFF[15:8]
AccessRRRRRRRR
Reset00000000
Bit 2322212019181716
DIFF[7:0]
AccessRRRRRRRR
Reset00000000
Bit 151413121110 9 8
COARSE[5:0] FINE[9:8]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit 76543210
FINE[7:0]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000