Computing Dictionary
Motorola 68040 definition
processor (MC68040) A
microprocessor from
Motorola. It was the successor to the
Motorola 68030 and was followed by the
Motorola 68060.
The 68040 was the first
680x0 family member with an on-chip
FPU. It also had split instruction and data
caches of 4 kilobytes(?) each. It was fully
pipelined, with six stages.
The 68040 was used in the
Apple Macintosh Quadra series of
personal computers.
The MC68LC040 is an MC68040 without a built-in
FPU, and the MC68EC040 is an MC68040 without an
MMU or
FPU.
(2003-10-25)