Datasheet

32142D–06/2013

ATUC64/128/256L3/4U

14.6.12 DFLLn Maximum Step Register

Name:

DFLLnSTEP

Access Type: Read/Write

Reset Value: 0x00000000

• FSTEP: Fine Maximum Step

This indicates the maximum step size during fine adjustment in closed-loop mode. When adjusting to a new frequency, the

expected overshoot of that frequency depends on this step size.

• CSTEP: Coarse Maximum Step

This indicates the maximum step size during coarse adjustment in closed-loop mode. When adjusting to a new frequency, the

expected overshoot of that frequency depends on this step size.

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

-------FSTEP[8]

23 22 21 20 19 18 17 16

FSTEP[7:0]

15 14 13 12 11 10 9 8

--------

76543210

CSTEP[7:0]