Datasheet

282
32142D–06/2013
ATUC64/128/256L3/4U
14.6.14 DFLLn Ratio Register
Name:
DFLLnRATIO
Access Type: Read-only
Reset Value: 0x00000000
• RATIODIFF: Multiplication Ratio Difference
In closed-loop mode, this field indicates the error in the ratio between the VCO frequency and the target frequency.
• NUMREF: Numerical Reference
The number of reference clock cycles used to measure the VCO frequency equals 2^NUMREF.
31 30 29 28 27 26 25 24
RATIODIFF[15:8]
23 22 21 20 19 18 17 16
RATIODIFF[7:0]
15 14 13 12 11 10 9 8
-
-------
76543210
-
--
NUMREF[4:0]