SAM4L Datasheet, PDF (123/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

10.7.13 Status Register
Name:
SR
Access Type:
Read-only
Offset:
0x0D4
Reset Value:
0x00000000
ATSAM4L4/L2
31
30
29
28
27
26
25
AE
-
-
-
-
-
-
23
22
21
20
19
18
17
-
-
-
-
-
-
-
15
14
13
12
11
10
9
-
-
-
-
-
-
-
7
6
5
4
3
2
1
-
-
CKRDY
-
-
-
-
• AE: Access Error
0: No access error has occurred.
1: A write to lock protected register without unlocking it has occurred.
• WAKE: Wake up
0: No wakeup has occurred.
1: A wakeup event has occurred. Refer the WCAUSE register to know the wakeup source.
• CKRDY: Clock Ready
0: The CKSEL register has been written, and the new clock setting is not yet effective.
1: The synchronous clocks have frequencies as indicated in the CKSEL register.
• CFD: Clock Failure Detected
0: Main clock is running correctly.
1: Failure on main clock detected. Main clock reverting to RCSYS.
24
-
16
-
8
WAKE
0
CFD
42023C–SAM–02/2013
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