Datasheet

PIC16(L)F1516/7/8/9

DS41452C-page 60  2010-2012 Microchip Technology Inc.

5.6 Register Definitions: Oscillator Control

U-0 R/W-0/0 R/W-1/1 R/W-1/1 R/W-1/1 U-0 R/W-0/0 R/W-0/0

—

IRCF<3:0>

—

SCS<1:0>

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

bit 7 Unimplemented: Read as ‘0’

bit 6-3 IRCF<3:0>: Internal Oscillator Frequency Select bits

1111 =16MHz

1110 =8MHz

1101 =4MHz

1100 =2MHz

1011 =1MHz

1010 = 500 kHz

(1)

1001 = 250 kHz

(1)

1000 = 125 kHz

(1)

0111 = 500 kHz (default upon Reset)

0110 = 250 kHz

0101 = 125 kHz

0100 = 62.5 kHz

001x = 31.25 kHz

000x =31kHz LF

bit 2 Unimplemented: Read as ‘0’

bit 1-0 SCS<1:0>: System Clock Select bits

1x = Internal oscillator block

01 = Secondary oscillator

00 = Clock determined by FOSC<2:0> in Configuration Words.

Note 1: Duplicate frequency derived from HFINTOSC.