PIC16F18346-ISLASHSS datasheet(89/471 Pages) MICROCHIP

89 / 471 page

 2016-2017 Microchip Technology Inc.

Preliminary

DS40001839B-page 89

PIC16(L)F18326/18346

7.5

OSCCON1: OSCILLATOR CONTROL REGISTER 1

U-0

R/W-f/f(1)

R/W-q/q(4)

—NOSC<2:0>(2,3)

NDIV<3:0>(2,3)

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

u = Bit is unchanged

x = Bit is unknown

-n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set

‘0’ = Bit is cleared

f = determined by fuse setting

q = Reset value is determined by hardware

bit 7

Unimplemented: Read as ‘0’

bit 6-4

NOSC<2:0>: New Oscillator Source Request bits

The setting requests a source oscillator and PLL combination per Table 7-1.

POR value = RSTOSC (Register 5-2).

bit 3-0

NDIV<3:0>: New Divider Selection Request bits

The setting determines the new postscaler division ratio per Table 7-2.

Note 1:

The default value (f/f) is set equal to the RSTOSC Configuration bits.

If NOSC is written with a reserved value (Table 7-1), the HFINTOSC will be automatically selected as the

clock source.

When CSWEN = 0, this register is read-only and cannot be changed from the POR value.

When RSTOSC = 110 (HFINTOSC 1 MHz) the NDIV bits will default to '0010' upon Reset; for all other

NOSC settings, the NVID bits will default to '0000' upon Reset.

OSCCON2: OSCILLATOR CONTROL REGISTER 2

U-0

R-q/q(1)

—

COSC<2:0>

CDIV<3:0>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

u = Bit is unchanged

x = Bit is unknown

-n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set

‘0’ = Bit is cleared

q = Reset value is determined by hardware

bit 7

Unimplemented: Read as ‘0’

bit 6-4

COSC<2:0>: Current Oscillator Source Select bits (read-only)

Indicates the current source oscillator and PLL combination per Table 7-1.

bit 3-0

CDIV<3:0>: Current Divider Select bits (read-only)

Indicates the current postscaler division ratio per Table 7-2.

Note 1: The Reset value (q/q) will match the NOSC<2:0>/NDIV<3:0> bits.

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