Atmel SAM4L Xplained Pro Starter Kit Atmel ATSAM4L-XSTK ATSAM4L-XSTK Hoja De Datos
Los códigos de productos
ATSAM4L-XSTK
129
42023E–SAM–07/2013
ATSAM4L8/L4/L2
10.7.13
Status Register
Name: SR
Access Type:
Read-only
Offset: 0x0D4
Reset Value:
0x00000000
• 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.
31
30
29
28
27
26
25
24
AE
-
-
-
-
-
-
-
23
22
21
20
19
18
17
16
-
-
-
-
-
-
-
-
15
14
13
12
11
10
9
8
-
-
-
-
-
-
-
WAKE
7
6
5
4
3
2
1
0
-
-
CKRDY
-
-
-
-
CFD