Atmel SAM4L Xplained Pro Starter Kit Atmel ATSAM4L-XSTK ATSAM4L-XSTK Data Sheet
Product codes
ATSAM4L-XSTK
242
42023E–SAM–07/2013
ATSAM4L8/L4/L2
13.7.19
4/8/12MHz RC Oscillator Status Register
Name:
RCFASTSR
Access Type:
Read-only
Reset Value:
0x00000000
• UPDATED: Current Trim Value Updated
This field toggles each time the tuning procedure completes.
• LOCKLOST: Lock Lost
This field indicates that the current count is outside RCFASTCFG.LOCKMARGIN from the theoretical count. It is updated after
each tuning procedure.
• LOCK: Lock
This field indicates that the current count is within RCFASTCFG.LOCKMARGIN of the theoretical count. It is updated after each
tuning procedure.
• SIGN: Sign of Current Count Error
This field returns the sign of the current difference between the current count and the theoretical count. It is updated after each
tuning procedure.
• CNTERR: Current Count Error
This field returns the current absolute difference between the current count and the theoretical count. It is updated after each
tuning procedure.
• CURTRIM: Current Trim Value
This field returns the current trim value used by the RCFAST oscillator. It is updated after each tuning procedure.
31
30
29
28
27
26
25
24
UPDATED
-
-
-
-
-
LOCKLOST
LOST
23
22
21
20
19
18
17
16
-
-
SIGN
CNTERR
15
14
13
12
11
10
9
8
-
-
-
-
-
-
-
-
7
6
5
4
3
2
1
0
-
CURTRIM