Motorola MCF5281 用户手册
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9-18
MCF5282 User’s Manual
MOTOROLA
Functional Description
NRM
0 0 0 Off On 0 Lose lock
Regain
NRM
‘LK
1
‘LC
Block LOCKS
from being
cleared
from being
cleared
Lose reference
clock or no lock
regain
clock or no lock
regain
Stuck
—
—
—
Lose reference
clock,
regain
clock,
regain
NRM
‘LK
1
‘LC
Block LOCKS
from being
cleared
from being
cleared
NRM
0 0 0 Off On 1 Lose lock
No lock regain
Unstable
NRM
NRM
0–>‘L
K
K
0–>1 ‘LC
Block LOCKS
until lock
regained
until lock
regained
Lose reference
clock or no f.b.
clock regain
clock or no f.b.
clock regain
Stuck
—
—
—
Lose reference
clock, regain
clock, regain
Unstable
NRM
NRM
0–>‘L
K
K
0–>1 ‘LC
LOCS not set
because
LOCEN = 0
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
lock, regain
NRM
0
1
‘LC
LOCS not set
because
LOCEN = 0
because
LOCEN = 0
NRM
0 0 0 On On 1
—
—
NRM
‘LK
1
‘LC
Lose lock
Unstable
NRM
NRM
0
0–>1 ‘LC
Lose lock, regain
NRM
0
1
‘LC
Lose clock
Stuck
—
—
—
Lose clock, regain
without lock
without lock
Unstable
NRM
NRM
0
0–>1 ‘LC
Lose clock, regain
with lock
with lock
NRM
0
1
‘LC
NRM
X X 1 Off X
X Lose lock,
f.b. clock,
reference
clock
reference
clock
RESET
RESET
—
—
—
Reset
immediately
immediately
NRM
0 0 1 On On X
—
—
NRM
‘LK
1
‘LC
Lose lock or clock RESET
—
—
—
Reset
immediately
immediately
Table 9-10. Stop Mode Operation (Sheet 2 of 5)
MODE
In
LO
CEN
LOCRE
LO
LRE
PLL
OSC
FW
KUP
Expected
PLL
Action at
Stop
PLL Action
During Stop
MODE
Out
LOCKSS
LO
CK
LO
CS
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