Atmel Evaluation Kit AT91SAM9X35-EK AT91SAM9X35-EK Data Sheet
Product codes
AT91SAM9X35-EK
194
SAM9X35 [DATASHEET]
11055E–ATARM–10-Mar-2014
22.13.9 PMC Clock Generator Main Clock Frequency Register
Name:
CKGR_MCFR
Address:
0xFFFFFC24
Access:
Read-only
• MAINF: Main Clock Frequency
Gives the number of Main Clock cycles within 16 Slow Clock periods.
• MAINFRDY: Main Clock Ready
0 = MAINF value is not valid or the Main Oscillator is disabled.
1 = The Main Oscillator has been enabled previously and MAINF value is available.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
MAINFRDY
15
14
13
12
11
10
9
8
MAINF
7
6
5
4
3
2
1
0
MAINF