Freescale-semiconductor ColdFire MCF52210 Manual do Utilizador descarregar pdf (Página 118)

100

101

Clock Module

MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2

6-24 Freescale Semiconductor

NRM 0 0 0 Off On 1 Lose lock No lock regain Unstable

NRM

0–>‘LK 0–>1 ‘LC Block LOCKS

until lock

regained

Lose reference

clock or no f.b.

clock regain

Stuck — — —

Lose reference

clock, regain

Unstable

NRM

0–>‘LK 0–>1 ‘LC LOCS not set

because

LOCEN = 0

NRM 0 0 0 On On 0 — — NRM ‘LK 1 ‘LC

Lose lock or clock Stuck — — —

Lose lock, regain NRM 0 1 ‘LC

Lose clock and

lock, regain

NRM 0 1 ‘LC LOCS not set

because

LOCEN = 0

NRM 0 0 0 On On 1 — — NRM ‘LK 1 ‘LC

Lose lock Unstable

NRM

00–>1‘LC

Lose lock, regain NRM 0 1 ‘LC

Lose clock Stuck — — —

Lose clock, regain

without lock

Unstable

NRM

00–>1‘LC

Lose clock, regain

with lock

NRM 0 1 ‘LC

NRM X X 1 Off X X Lose lock,

f.b. clock,

reference

clock

RESET RESET — — — Reset

immediately

NRM 0 0 1 On On X — — NRM ‘LK 1 ‘LC

Lose lock or clock RESET — — — Reset

immediately

NRM 1 0 0 Off Off 0 Lose lock,

f.b. clock,

reference

clock

Regain NRM ‘LK 1 ‘LC REF not entered

during stop;

SCM entered

during stop only

during oscillator

startup

No regain Stuck — — —

Table 6-19. Stop Mode Operation (continued)

MODE

LOCEN

LOCRE

LOLRE

PLL

OSC

FWKUP

Expected

PLL

Action at

Stop

PLL Action

During Stop

MODE

Out

LOCKSS

LOCK

LOCS

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