Data Sheet

166
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
0x28
DFLLVAL
7:0 FINE[7:0]
0x29 15:8 COARSE[5:0] FINE[9:8]
0x2A 23:16 DIFF[7:0]
0x2B 31:24 DIFF[15:8]
0x2C
DFLLMUL
7:0 MUL[7:0]
0x2D 15:8 MUL[15:8]
0x2E 23:16 FSTEP[7:0]
0x2F 31:24 CSTEP[5:0] FSTEP[9:8]
0x30 DFLLSYNC 7:0 READREQ
0x31
...
0x33
Reserved
0x34
BOD33
7:0 RUNSTDBY ACTION[1:0] HYST ENABLE
0x35 15:8 PSEL[3:0] CEN MODE
0x36 23:16
LEVEL[5:0]
0x37 31:24
0x38
...
0x3B
Reserved
0x3C
VREG
7:0 RUNSTDBY
0x3D 15:8 FORCELDO
0x3E Reserved
0x3F Reserved
0x40
VREF
7:0 BGOUTEN TSEN
0x41 15:8
0x42 23:16 CALIB[7:0]
0x43 31:24
CALIB[10:8]
0x44 DPLLCTRLA 7:0 ONDEMAND RUNSTDBY
ENABLE
0x45
...
0x47
Reserved
0x48
DPLLRATIO
7:0 LDR[7:0]
0x49 15:8
LDR[11:8]
0x4A 23:16
LDRFRAC[3:0]
0x4B 31:24
0x4C
DPLLCTRLB
7:0 REFCLK[1:0] WUF LPEN FILTER[1:0]
0x4D 15:8
LBYPASS LTIME[2:0]
0x4E 23:16 DIV[7:0]
0x4F 31:24
DIV[10:8]
0x50 DPLLSTATUS 7:0
DIV ENABLE CLKRDY LOCK
Offset Name
Bit
Pos.