mcf5407 Freescale Semiconductor, Inc, mcf5407 Datasheet - Page 134
mcf5407
Manufacturer Part Number
mcf5407
Description
Mcf5407 Coldfire Integrated Microprocessor User
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF5407.pdf
(546 pages)
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Cache Organization
Figure 4-4. Data Cache—A: at Reset, B: after Invalidation, C and D: Loading Pattern
Set 127
4-10
Set 0
A:Cache population at
At reset, cache contents
are indeterminate; V and
M may be set. The cache
should be cleared
explicitly by setting
CACR[DCINVA] before
the cache is enabled.
Way 0 Way 1 Way 2 Way 3
start-up
Invalid (V = 0)
Valid, not modified (V = 1, M = 0)
Valid, modified (V = 1, M = 1)
B:Cache after invalidation,
Setting CACR[DCINVA]
invalidates the entire
cache.
Way 0 Way 1 Way 2 Way 3
before it is enabled
MCF5407 User’s Manual
C:Cache after loads in
Initial cacheable
accesses to memory-fill
positions in way 0.
Way 0 Way 1 Way 2 Way 3
Way 0
D:First load in Way 1
A line is loaded in
way 1 only if that set is
full in way 0.
Way 0 Way 1 Way 2 Way 3
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