Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Fiche De Données
Codes de produits
AT91SAM9N12-EK
203
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
22.12.16 PMC Status Register
Name:
PMC_SR
Address:
0xFFFFFC68
Access:
Read-only
• MOSCXTS: Main XTAL Oscillator Status
0: Main XTAL oscillator is not stabilized.
1: Main XTAL oscillator is stabilized.
• LOCKA: PLLA Lock Status
0: PLLA is not locked
1: PLLA is locked.
• LOCKB: PLLB Lock Status
0: PLLB is not locked
1: PLLB is locked.
• MCKRDY: Master Clock Status
0: Master Clock is not ready.
1: Master Clock is ready.
• OSCSELS: Slow Clock Oscillator Selection
0: Internal slow clock RC oscillator is selected.
1: External slow clock 32 kHz oscillator is selected.
• PCKRDYx: Programmable Clock Ready Status
0: Programmable Clock x is not ready.
1: Programmable Clock x is ready.
• MOSCSELS: Main Oscillator Selection Status
0: Selection is in progress.
1: Selection is done.
• MOSCRCS: Main On-Chip RC Oscillator Status
0: Main on-chip RC oscillator is not stabilized.
1: Main on-chip RC oscillator is stabilized.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
FOS
CFDS
CFDEV
MOSCRCS
MOSCSELS
15
14
13
12
11
10
9
8
–
–
–
–
–
–
PCKRDY1
PCKRDY0
7
6
5
4
3
2
1
0
OSCSELS
–
–
–
MCKRDY
LOCKB
LOCKA
MOSCXTS