![](http://datasheet.mmic.net.cn/100000/IF180C52TXXX-20R_datasheet_3493957/IF180C52TXXX-20R_210.png)
210
32099I–01/2012
AT32UC3L016/32/64
13.6.6
Power and Clocks Status Register
Name:
PCLKSR
Access Type:
Read-only
Offset:
0x0014
Reset Value:
0x00000000
BRIFAVALID: Backup Register Interface Valid
0: The values in the backup registers are not valid.
1: The values in the backup registers are valid.
BRIFARDY: Backup Register Interface Ready
0: The backup register interface is busy updating the backup registers. Writes to BRn will be discarded.
1: The backup register interface is ready to accept new writes to the backup registers.
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
DFLL0LOCKLOSTA: DFLL0 Lock Lost on Accurate Value
0: DFLL has not lost its Accurate lock or has never been enabled.
1: DFLL has lost its Accurate lock, either by disabling the DFLL or due to faulty operation.
DFLL0LOCKLOSTF: DFLL0 Lock Lost on Fine Value
0: DFLL has not lost its Fine lock or has never been enabled.
1: DFLL has lost its Fine lock, either by disabling the DFLL or due to faulty operation.
DFLL0LOCKLOSTC: DFLL0 Lock Lost on Coarse Value
0: DFLL has not lost its Coarse lock or has never been enabled.
1: DFLL has lost its Coarse lock, either by disabling the DFLL or due to faulty operation.
DFLL0LOCKA: DFLL0 Locked on Accurate Value
0: DFLL is unlocked on Accurate value.
1: DFLL is locked on Accurate value, and is ready to be selected as clock source with an accurate output clock.
DFLL0LOCKF: DFLL0 Locked on Fine Value
31
30
29
28
27
26
25
24
-
BRIFAVALID
-
--
-
23
22
21
20
19
18
17
16
-
---
--
-
BRIFARDY
15
14
13
12
11
10
9
8
DFLL0RCS
DFLL0RDY
DFLL0LOCK
LOSTA
DFLL0LOCK
LOSTF
DFLL0LOCK
LOSTC
DFLL0LOCK
A
DFLL0LOCK
F
DFLL0LOCK
C
76
543
21
0
BODDET
SM33DET
VREGOK
-
OSC0RDY
OSC32RDY