MC68030 Datasheet, PDF (293/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Memory Management Unit
31
24 23
16
ADDRESS BASE
ADDRESS MASK
E 0 0 0 0 CI R/W RWN 0
FC BASE
0
FC MASK
15
87
0
ADDRESS BASE - VALUE OF A31-A24 THAT DEFINES BLOCK
ADDRESS MASK - BITS A31-A24 TO BE IGNORED
E - ENABLE
CI - CACHE INHIBIT
R/W - READ/WRITE
RWM - READ WRITE MASK
FC BASE - FUNCTION CODE VALUE FOR BLOCK
FC MASK - FUNCTION CODE BITS TO BE IGNORED
FIG 9-3
Figure 9-3. Translation Table Tree
MOTOROLA
MC68030 USER’S MANUAL
9-5