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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
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
In
LOCEN
LOCRE
LOLRE
PLL
OSC
FWKUP
Expected
PLL
Action at
Stop
PLL Action
During Stop
MODE
Out
LOCKSS
LOCK
LOCS
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