Motorola MC68030
From Computer History Wiki
| MC68030 | |
| Family: | Motorola M68000 Family |
|---|---|
| Architecture: | 32-bit |
| Manufacturer: | Motorola |
| Year Introduced: | 1987 |
| Address bus: | 32-bit |
| Data bus: | 32-bit |
| Number of registers: | 15 general 32-bit registers (8 data, 7 address) |
| Cache: | 256 byte icache+dcache |
| Clock Speed: | 16, 20, 25, 33, 40, 50 MHz |
The Motorola MC68030 is a 32-bit microprocessor in the Motorola M68000 Family, the successor to the 68020. Later members include the 68040 and 68060.
Performance was increased over earlier members in part by the increased use of caching; the MC68030 included an additional separate 256-byte cache for data.
It was the first family member to include memory management on the main chip. It does not include floating point; a separate floating point chip must be used if hardware floating point is desired.
It was used in a number of Macintosh, Amiga and later Atari personal computers, and also workstations from NeXT.
Downgraded versions which omitted the memory management were produced.
