18.7.9 DFLL48M Value
Name: | DFLLVAL |
Offset: | 0x24 |
Reset: | 0x0000XXXX |
Property: | PAC Write-Protection, Read-Synchronized, Write-Synchronized |
Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
DIFF[15:8] | |||||||||
Access | R | R | R | R | R | R | R | R | |
Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
DIFF[7:0] | |||||||||
Access | R | R | R | R | R | R | R | R | |
Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | x |
Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
COARSE[5:0] | |||||||||
Access | R/W | R/W | R/W | R/W | R/W | R/W | |||
Reset | 0 | 0 | 0 | 0 | 0 | x |
Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
FINE[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 | x |
Bits 31:16 – DIFF[15:0] Multiplication Ratio Difference
In closed-loop mode (DFLLCTRLB.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.
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.
The DFLL48M is factory-calibrated for 48MHz. Register DFLLVAL.COARSE stores the coarse frequency calibration after reset.
Bits 7:0 – FINE[7:0] Fine Value
Set the value of the Fine Calibration register. In closed-loop mode, this field is read-only.
The DFLL48M is factory-calibrated for 48MHz. Register DFLLVAL.FINE stores the coarse frequency calibration after reset.