Datasheet

281
32142D–06/2013
ATUC64/128/256L3/4U
14.6.13 DFLLn Spread Spectrum Generator Control Register
Name:
DFLLnSSG
Access Type: Read/Write
Reset Value: 0x00000000
• STEPSIZE: SSG Step Size
Sets the step size of the spread spectrum.
• AMPLITUDE: SSG Amplitude
Sets the amplitude of the spread spectrum.
• PRBS: Pseudo Random Bit Sequence
0: Each spread spectrum frequency is applied at constant intervals
1: Each spread spectrum frequency is applied at pseudo-random intervals
• EN: Enable
0: SSG is disabled.
1: SSG is enabled.
Note that this register is protected by a lock. To write to this register the UNLOCK register has to be written first. Please
refer to the UNLOCK register description for details.
31 30 29 28 27 26 25 24
-
-------
23 22 21 20 19 18 17 16
- - - STEPSIZE[4:0]
15 14 13 12 11 10 9 8
- - - AMPLITUDE[4:0]
76543210
------PRBSEN