Motorola ColdFire MCF5281 User Manual page 224

Functional Description
Table 9-10. Stop Mode Operation (Sheet 2 of 5)
MODE
In
NRM 0 0 0 Off On 0 Lose lock
NRM 0 0 0 Off On 1 Lose lock
NRM 0 0 0 On On 0
NRM 0 0 0 On On 1
NRM X X 1 Off X
NRM 0 0 1 On On X
9-18
Expected
PLL PLL Action
Action at During Stop
Stop
Regain
Lose reference
clock or no lock
regain
Lose reference
clock,
regain
No lock regain
Lose reference
clock or no f.b.
clock regain
Lose reference
clock, regain
— —
Lose lock or clock Stuck
Lose lock, regain
Lose clock and
lock, regain
— —
Lose lock
Lose lock, regain
Lose clock
Lose clock, regain
without lock
Lose clock, regain
with lock
X Lose lock, RESET
f.b. clock,
reference
clock
— —
Lose lock or clock RESET
MCF5282 User's Manual
MODE
Out
NRM 'LK 1
Stuck — —
NRM 'LK 1
Unstable 0–>'L 0–>1 'LC
NRM K
Stuck — —
Unstable 0–>'L 0–>1 'LC
NRM K
NRM 'LK 1
— —
NRM 0 1
NRM 0 1
NRM 'LK 1
Unstable 0 0–>1 'LC
NRM
NRM 0 1
Stuck — —
Unstable 0 0–>1 'LC
NRM
NRM 0 1
RESET — —
NRM 'LK 1
— —
Comments
'LC Block LOCKS
from being
cleared
—
'LC Block LOCKS
from being
cleared
Block LOCKS
until lock
regained
—
LOCS not set
because
LOCEN = 0
'LC
—
'LC
'LC LOCS not set
because
LOCEN = 0
'LC
'LC
—
'LC
— Reset
immediately
'LC
— Reset
immediately
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