Motorola ColdFire MCF5281 User Manual

Page 187

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Clock Module

Freescale Semiconductor

9-17

NRM

0 0 0 Off On 0 Lose lock

Regain

NRM

‘LK

1

‘LC

Block LOCKS
from being
cleared

Lose reference
clock or no lock
regain

Stuck

Lose reference
clock,
regain

NRM

‘LK

1

‘LC

Block LOCKS
from being
cleared

NRM

0 0 0 Off On 1 Lose lock

No lock regain

Unstable
NRM

0–>‘L
K

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–>‘L
K

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

Table 9-10. Stop Mode Operation (Sheet 2 of 5)

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

Comments

MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3

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