PIC32MX120F032D datasheet(97/320 Pages) MICROCHIP

97 / 320 page

Preliminary

DS61168D-page 97

PIC32MX1XX/2XX

OSCCON: OSCILLATOR CONTROL REGISTER(1)

Bit

Range

Bit

31/23/15/7

Bit

30/22/14/6

Bit

29/21/13/5

Bit

28/20/12/4

Bit

27/19/11/3

Bit

26/18/10/2

Bit

25/17/9/1

Bit

24/16/8/0

31:24

U-0

R/W-y

R/W-0

R/W-1

—

PLLODIV<2:0>

FRCDIV<2:0>

23:16

U-0

R-0

R-1

R/W-y

—

SOSCRDY PBDIVRDY

PBDIV<1:0>

PLLMULT<2:0>

15:8

U-0

R-0

U-0

R/W-y

—

COSC<2:0>

—

NOSC<2:0>

7:0

R/W-0

R-0

R/W-0

R/W-y

R/W-0

CLKLOCK

ULOCK(2)

SLOCK

SLPEN

UFRCEN(2)

SOSCEN

OSWEN

Legend:

y = Value set from Configuration bits on POR

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 31-30 Unimplemented: Read as ‘0’

bit 29-27 PLLODIV<2:0>: Output Divider for PLL

111 = PLL output divided by 256

110 = PLL output divided by 64

101 = PLL output divided by 32

100 = PLL output divided by 16

011 = PLL output divided by 8

010 = PLL output divided by 4

001 = PLL output divided by 2

000 = PLL output divided by 1

bit 26-24 FRCDIV<2:0>: Internal Fast RC (FRC) Oscillator Clock Divider bits

111 = FRC divided by 256

110 = FRC divided by 64

101 = FRC divided by 32

100 = FRC divided by 16

011 = FRC divided by 8

010 = FRC divided by 4

001 = FRC divided by 2 (default setting)

000 = FRC divided by 1

bit 23

Unimplemented: Read as ‘0’

bit 22

SOSCRDY: Secondary Oscillator (SOSC) Ready Indicator bit

1 = Indicates that the Secondary Oscillator is running and is stable

0 = Secondary Oscillator is still warming up or is turned off

bit 21

PBDIVRDY: Peripheral Bus Clock (PBCLK) Divisor Ready bit

1 = PBDIV<1:0> bits can be written

0 = PBDIV<1:0> bits cannot be written

bit 20-19 PBDIV<1:0>: Peripheral Bus Clock (PBCLK) Divisor bits

11 = PBCLK is SYSCLK divided by 8 (default)

10 = PBCLK is SYSCLK divided by 4

01 = PBCLK is SYSCLK divided by 2

00 = PBCLK is SYSCLK divided by 1

Note 1: Writes to this register require an unlock sequence. Refer to Section 6. “Oscillator” (DS61112) in the

“PIC32 Family Reference Manual” for details.

2: This bit is available on PIC32MX2XX devices only.

PIC32MX120F032D Datasheet(PDF) 97 Page - Microchip Technology

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