PIC10LF322T-EMCSQTP datasheet(27/210 Pages) MICROCHIP

27 / 210 page

 2011 Microchip Technology Inc.

Preliminary

DS41585A-page 27

PIC10(L)F320/322

4.0

OSCILLATOR MODULE

4.1

Overview

The oscillator module has a variety of clock sources and

selection features that allow it to be used in a range of

applications

while

maximizing

performance

and

minimizing power consumption. Figure 4-1 illustrates a

block diagram of the oscillator module.

The system can be configured to use an internal

calibrated high-frequency oscillator as clock source, with

a choice of selectable speeds via software.

Clock source modes are configured by the FOSC bit in

Configuration Word (CONFIG).

EC oscillator from CLKIN.

INTOSC oscillator, CLKIN not enabled.

FIGURE 4-1:

PIC10(L)F320/322 CLOCK SOURCE BLOCK DIAGRAM

HFINTOSC

16 MHz

HFIOFR(1)

HFIOFS(1)

16 MHz

8 MHz

4 MHz

2 MHz

1 MHz

500 kHz

250 kHz

111

110

101

100

011

010

001

LFINTOSC

31 kHz

000

IRCF<2:0>

INTOSC

LFIOFR(1)

CLKIN

FOSC

(Configuration

Word)

System Clock

(CPU and

Peripherals)

CLKROE

CLKR

31 kHz

Note 1:

HFIOFR, HFIOFS and LFIOFR are Status bits in the OSCCON register.

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