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Memory Management Unit
MOTOROLA M68060 USER’S MANUAL 4-23
Figure 4-18. Translation Table Using S-Bit and W-Bit To Set Protection
PRIVILEGE
MODE SRP
URP
URP & SRP POINT
TO SAME A LEVEL
TABLE
W =1
W = 1
W = 0
W = 0
S = 1,W = X
THIS PAGE
SUPERVISOR ONLY,
READ ONLY
W = 0 S = 1,W = 0
POINTER-LEVEL
TABLE
PAGE-LEVEL
TABLE
W = 0 S = 0,W = 0
THIS PAGE
SUPERVISOR ONLY,
READ/WRITE
THIS PAGE
SUPERVISOR/USER,
READ ONLY
THIS PAGE
SUPERVISOR/USER,
READ/WRITE
W = X S = 0,W = X
NOTE: X = DON'T CARE
W = X
ROOT-LEVEL
TABLE
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