dsPIC30F6010
DS70119B-page 136
Advance Information
2004 Microchip Technology Inc.
Configuration bits determine the clock source upon
Power-on Reset (POR) and Brown-out Reset (BOR).
Thereafter, the clock source can be changed between
permissible clock sources. The OSCCON register
controls the clock switching and reflects system clock
related status bits.
FIGURE 21-1:
OSCILLATOR SYSTEM BLOCK DIAGRAM
Primary
OSC1
OSC2
SOSCO
SOSCI
Oscillator
32 kHz LP
Clock
and Control
Block
Switching
Oscillator
x4, x8, x16
PLL
Primary
Oscillator
Stability Detector
Stability Detector
Secondary
Oscillator
Programmable
Clock Divider
Oscillator
Start-up
Timer
Fail-Safe Clock
Monitor (FSCM)
Internal Fast RC
Oscillator (FRC)
Internal Low
Power RC
Oscillator (LPRC)
PWRSAV
Instruction
Wake-up Request
Oscillator Configuration bits
System
Clock
Oscillator Trap
to Timer1
LPRC
FRC
Secondary Osc
POR Done
Primary Osc
F
PLL
POST<1:0>
2
FCKSM<1:0>
2
PLL
Lock
COSC<1:0>
NOSC<1:0>
OSWEN
CF
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