PIC32MX110F016B-I/SS Microchip Technology, PIC32MX110F016B-I/SS Datasheet - Page 98

• Manufacturer Part Number: PIC32MX110F016B-I/SS
• Description: PIC32, 16KB Flash, 4KB RAM, 40 MHz, CTMU, 4 DMA 28 SSOP .209in TUBE
• Manufacturer: Microchip Technology

PIC32MX1XX/2XX
REGISTER 8-1:
DS61168C-page 98
bit 18-16 PLLMULT<2:0>: Phase-Locked Loop (PLL) Multiplier bits
bit 15
bit 14-12 COSC<2:0>: Current Oscillator Selection bits
bit 11
bit 10-8
bit 7
bit 6
bit 5
bit 4
bit 3
Note 1:
2:
111 = Clock is multiplied by 24
110 = Clock is multiplied by 21
101 = Clock is multiplied by 20
100 = Clock is multiplied by 19
011 = Clock is multiplied by 18
010 = Clock is multiplied by 17
001 = Clock is multiplied by 16
000 = Clock is multiplied by 15
Unimplemented: Read as ‘0’
111 = Internal Fast RC (FRC) Oscillator divided by OSCCON<FRCDIV> bits
110 = Internal Fast RC (FRC) Oscillator divided by 16
101 = Internal Low-Power RC (LPRC) Oscillator
100 = Secondary Oscillator (S
011 = Primary Oscillator (P
010 = Primary Oscillator (P
001 = Internal Fast RC Oscillator with PLL module via Postscaler (FRCPLL)
000 = Internal Fast RC (FRC) Oscillator
Unimplemented: Read as ‘0’
NOSC<2:0>: New Oscillator Selection bits
111 = Internal Fast RC Oscillator (FRC) divided by OSCCON<FRCDIV> bits
110 = Internal Fast RC Oscillator (FRC) divided by 16
101 = Internal Low-Power RC (LPRC) Oscillator
100 = Secondary Oscillator (S
011 = Primary Oscillator with PLL module (XTPLL, HSPLL or ECPLL)
010 = Primary Oscillator (XT, HS or EC)
001 = Internal Fast Internal RC Oscillator with PLL module via Postscaler (FRCPLL)
000 = Internal Fast Internal RC Oscillator (FRC)
On Reset, these bits are set to the value of the FNOSC Configuration bits (DEVCFG1<2:0>).
CLKLOCK: Clock Selection Lock Enable bit
If clock switching and monitoring is disabled (FCKSM<1:0> = 1x):
1 = Clock and PLL selections are locked
0 = Clock and PLL selections are not locked and may be modified
If clock switching and monitoring is enabled (FCKSM<1:0> = 0x):
Clock and PLL selections are never locked and may be modified.
ULOCK: USB PLL Lock Status bit
1 = Indicates that the USB PLL module is in lock or USB PLL module start-up timer is satisfied
0 = Indicates that the USB PLL module is out of lock or USB PLL module start-up timer is in progress or
SLOCK: PLL Lock Status bit
1 = PLL module is in lock or PLL module start-up timer is satisfied
0 = PLL module is out of lock, PLL start-up timer is running or PLL is disabled
SLPEN: Sleep Mode Enable bit
1 = Device will enter Sleep mode when a WAIT instruction is executed
0 = Device will enter Idle mode when a WAIT instruction is executed
CF: Clock Fail Detect bit
1 = FSCM has detected a clock failure
0 = No clock failure has been detected
Writes to this register require an unlock sequence. Refer to Section 6. “Oscillator” (DS61112) in the
“PIC32 Family Reference Manual” for details.
This bit is available on PIC32MX2XX devices only.
USB PLL is disabled
OSCCON: OSCILLATOR CONTROL REGISTER
OSC
OSC
OSC
OSC
) with PLL module (XTPLL, HSPLL or ECPLL)
) (XT, HS or EC)
(2)
)
)
Preliminary
(1)
© 2011 Microchip Technology Inc.