Freescale Semiconductor ColdFire MCF52210 User Manual

Page 118

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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

0

0–>1

‘LC

Lose lock, regain

NRM

0

1

‘LC

Lose clock

Stuck

Lose clock, regain
without lock

Unstable
NRM

0

0–>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

In

LO

CEN

LOCRE

LO

LRE

PLL

OSC

FWKUP

Expected

PLL

Action at

Stop

PLL Action

During Stop

MODE

Out

LOCKSS

LO

CK

LO

CS

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