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ATSAM4S-XPLD
499
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
28.2.16.26PMC Oscillator Calibration Register
Name:
PMC_OCR
Address:
0x400E0510
Access:
Read-write
This register can only be written if the WPEN bit is cleared in
.
• CAL12: RC Oscillator Calibration bits for 12 MHz
Calibration bits applied to the RC Oscillator when SEL12 is set.
• SEL12: Selection of RC Oscillator Calibration bits for 12 MHz
0 = Default value stored in Flash memory.
1 = Value written by user in CAL12 field of this register.
• CAL8: RC Oscillator Calibration bits for 8 MHz
Calibration bits applied to the RC Oscillator when SEL8 is set.
• SEL8: Selection of RC Oscillator Calibration bits for 8 MHz
0 = Factory determined value stored in Flash memory.
1 = Value written by user in CAL8 field of this register.
• CAL4: RC Oscillator Calibration bits for 4 MHz
Calibration bits applied to the RC Oscillator when SEL4 is set.
• SEL4: Selection of RC Oscillator Calibration bits for 4 MHz
0 = Factory determined value stored in Flash memory.
1 = Value written by user in CAL4 field of this register.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
SEL4
CAL4
15
14
13
12
11
10
9
8
SEL8
CAL8
7
6
5
4
3
2
1
0
SEL12
CAL12