Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
551
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
29.17.26PMC Oscillator Calibration Register
Name:
PMC_OCR
Address:
0x400E0510
Access:
Read/Write
This register can only be written if the WPEN bit is cleared in
• 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: Default value stored in Flash memory.
1: Value written by user in CAL4 field of this register.
1: Value written by user in CAL4 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.
1: Value written by user in CAL8 field of this register.
• 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: Factory determined value stored in Flash memory.
1: Value written by user in CAL12 field of this register.
1: Value written by user in CAL12 field of this register.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
SEL12
CAL12
15
14
13
12
11
10
9
8
SEL8
CAL8
7
6
5
4
3
2
1
0
SEL4
CAL4