Datasheet

226
42023E–SAM–07/2013
ATSAM4L8/L4/L2
13.7.6 Power and Clocks Status Register
Name: PCLKSR
Access Type: Read-only
Offset: 0x0014
Reset Value: 0x00000000
• RCFASTLOCKLOST: RCFAST lock lost value
0: RCFAST has not lost it’s lock or has never been enabled.
1: RCFAST has lost it’s lock.
• RCFASTLOCK: RCFAST Locked on Accurate value
0: RCFAST is not locked on accurate value.
1: RCFAST is locked on accurate value, the tuning procedure is completed and the current count is within the
RCFASTCFG.LOCKMARGIN of the target count.
• PLL0LOCKLOST: PLL0 lock lost value
0: PLL0 has not lost it’s lock or has never been enabled.
1: PLL0 has lost it’s lock, either by disabling the PLL0 or due to faulty operation.
• PLL0LOCK: PLL0 Locked on Accurate value
0: PLL0 is unlocked on accurate value.
1: PLL0 is locked on accurate value, and is ready to be selected as clock source with an accurate output clock.
• DFLL0RCS: DFLL0 Reference Clock Stopped
0: The DFLL reference clock is running, or has never been enabled.
1: The DFLL reference clock has stopped or is too slow.
• DFLL0RDY: DFLL0 Synchronization Ready
0: Read or write to DFLL registers is invalid.
1: Read or write to DFLL registers is valid.
• DFLL0LOCKF: DFLL0 Locked on Fine Value
0: DFLL is unlocked on Fine value.
1: DFLL is locked on Fine value, and is ready to be selected as clock source with a high accuracy on the output clock.
• DFLL0LOCKC: DFLL0 Locked on Coarse Value
0: DFLL is unlocked on Coarse value.
31 30 29 28 27 26 25 24
--------
23 22 21 20 19 18 17 16
- ------
15 14 13 12 11 10 9 8
-
RCFASTLOC
KLOST
RCFASTLOC
K
-----
76543210
PLL0LOCKL
OST
PLL0LOCK - DFLL0RCS DFLL0RDY
DFLL0LOCK
F
DFLL0LOCK
C
OSC0RDY