Datasheet

SAM9G20
DS60001516A-page 284  2017 Microchip Technology Inc.
25.9.8 PMC Clock Generator Main Clock Frequency Register
Name:CKGR_MCFR
Access:Read-only
MAINF: Main Clock Frequency
Gives the number of Main Clock cycles within 16 Slow Clock periods.
MAINRDY: 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
–––––––MAINRDY
15 14 13 12 11 10 9 8
MAINF
76543210
MAINF