Motorola 6801
processor
(And 6803) A version of the Motorola 6800 with ROM, some RAM, a serial I/O port and other functions on the chip. It was meant for embedded controllers, where the part count was to be minimised. The 6803 led to the 68HC11 and that was extended to 16 bits as the 68HC16.
(1994-11-07)
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- Motorola 68010
processor A microprocessor from Motorola. It was the successor to the Motorola 68000 and was followed by the Motorola 68020. Some instructions which were previously user mode were made system mode, which necessitated patches to a few programs. The 68010’s main advantage over the 68000 was that it could recover from a bus fault. The […]
- Motorola 68020
processor A microprocessor from Motorola. It was the successor to the Motorola 68010 and was followed by the Motorola 68030. The 68020 has 32-bit internal and external data and address buses and a 256-byte instruction buffer, arranged as 64 direct-mapped 4-byte entries[?]. The 68020 added many improvements to the 68010 including a 32-bit ALU and […]
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processor A 32-bit microprocessor in Motorola’s Motorola 68000 family, with on-chip split instruction and data cache of 256 bytes each. The 68030 has an on-chip MMU (except in the 680EC30 version). The 68881 and the faster 68882 FPU chips could be used with the 68030. The 68030 was the successor to the Motorola 68020, and […]
- Motorola 68040
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 680×0 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 […]
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There was no 68050. The successor to the Motorola 68040 was the Motorola 68060. The even numbers (68000, 68020, 68060) were reserved for major revisions to the 680×0 core. The odd numbers (68010, 68030, 68050) were minor upgrades from the previous chip. For example, the Motorola 68010 was a Motorola 68000 with some minor enhancements […]