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Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet

Product codes
AT91SAM9N12-EK
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SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
21.3
Block Diagram
Figure 21-1.  Clock Generator Block Diagram
Power 
Management 
Controller
XIN
XOUT
Main Clock
MAINCK
Control
Status
PLLA and 
Divider
PLLA Clock
PLLACK
16M Main 
Oscillator
On Chip 
32K RC OSC
Slow Clock 
SLCK
XIN32
XOUT32
Slow Clock
Oscillator
Clock Generator
RCEN
OSCSEL
OSC32EN
OSC32BYP
On Chip 
12M RC OSC
MOSCRCEN
MOSCSEL
PLLB and 
Divider
PLLBCK
USB Clocks