PIC18LF2X_13 Datasheet, PDF(50/560 Page) Microchip Technology – PIC18(L)F2X/45K50 USB Flash MCU Product Brief

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PIC18LF2X_13 Datasheet, PDF (50/560 Pages) Microchip Technology – PIC18(L)F2X/45K50 USB Flash MCU Product Brief

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PIC18(L)F2X/4XK22

TABLE 3-2: INTERNAL OSCILLATOR FREQUENCY STABILITY BITS

IRCF<2:0>

INTSRC

MFIOSEL Selected Oscillator Selected Oscillator Stable when:

000

0

000

1

000

1

010 or 001

x

010 or 001

x

011 â 111

x

x

LFINTOSC

0

HFINTOSC

1

MFINTOSC

0

HFINTOSC

1

MFINTOSC

x

HFINTOSC

LFIOFS = 1

HFIOFS = 1

MFIOFS = 1

HFIOFS = 1

MFIOFS = 1

HFIOFS = 1

FIGURE 3-3:

TRANSITION TIMING FROM RC_RUN MODE TO PRI_RUN MODE

INTOSC

Multiplexer

OSC1

PLL Clock

Output

Q1

Q2

Q3

Q4

TOST(1)

TPLL(1)

CPU Clock

Peripheral

Clock

Program

Counter

PC

SCS<1:0> bits Changed

OSTS bit Set

Q1

Q2 Q3 Q4 Q1 Q2 Q3

1 2 n-1 n

Clock

Transition(2)

PC + 2

PC + 4

Note 1: TOST = 1024 TOSC; TPLL = 2 ms (approx). These intervals are not shown to scale.

2: Clock transition typically occurs within 2-4 TOSC.

DS41412F-page 50

ï£ 2010-2012 Microchip Technology Inc.

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