MC68030 Datasheet, PDF (333/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Memory Management Unit
Function Code Lookup (FCL)
This bit enables the use of function code lookup for searching the address translation ta-
bles:
0 — Function code lookup disabled
1 — Function code lookup enabled
When function code lookup is disabled, the first level of pointer tables within the transla-
tion table structure is indexed by the logical address field defined by TIA. When function
code lookup is enabled, the first table of the translation table structure is indexed by func-
tion code. In this case, the limit field of CRP or SRP is ignored.
MOTOROLA
MC68030 USER’S MANUAL
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