Motorola DSP96002 User Manual page 805

tors could be "least recently used" although they can not be replaced. Therefore, the "next
to be replaced sector" is the only sector whose lru bit is set and lock bit cleared. The ex-
ception to this rule is the case where all of the eight sectors are locked and designated as
"least recently used", in which case there is no "next to be replaced sector" because no
sector will be replaced until at least one sector is unlocked.
31
msb
msb
msb
msb
msb
msb
msb
msb
lru lock lru
0 0 1
31 30 29
MOTOROLA
lock lru lock 0
1 7 7
28 17 16
Figure 4 - Circular Tags Buffer
7 6
lsb 0
lsb 0
lsb 0
lsb 0
lsb 0
lsb 0
lsb 0
lsb 0
15
0
0 TAG number 0
0 TAG number 1
0 TAG number 2
0 TAG number 3
0 TAG number 4
0 TAG number 5
0 TAG number 6
0 TAG number 7
0 LRU/LOCK status
0
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