Datasheet

 2013-2015 Microchip Technology Inc. DS40001723D-page 53

PIC12(L)F1571/2

FIGURE 5-3: INTERNAL OSCILLATOR SWITCH TIMING

HFINTOSC/

LFINTOSC

IRCF<3:0>

System Clock

HFINTOSC/

LFINTOSC

IRCF <3:0>

System Clock

0 = 0

Oscillator Delay

(1)

2-Cycle Sync

Running

2-Cycle Sync Running

HFINTOSC/ LFINTOSC (WDT disabled)

HFINTOSC/

LFINTOSC (WDT enabled)

LFINTOSC

HFINTOSC/

IRCF <3:0>

System Clock

= 0  0

2-Cycle Sync

Running

LFINTOSC

HFINTOSC/MFINTOSC

LFINTOSC Turns Off unless WDT is Enabled

MFINTOSC

Oscillator

Note 1: See Table 5-1 (Oscillator Switching Delays) for more information.

Delay

(1)