- published: 15 Nov 2011
- views: 4723
The Motorola 68000 is a 16/32-bitCISC microprocessor core designed and marketed by Freescale Semiconductor (formerly Motorola Semiconductor Products Sector). Introduced in 1979 with HMOS technology as the first member of the successful 32-bit m68k family of microprocessors, it is generally software forward compatible with the rest of the line despite being limited to a 16-bit wide external bus. After 30 years in production, the 68000 architecture is still in use.
The 68000 grew out of the MACSS (Motorola Advanced Computer System on Silicon) project, begun in 1976 to develop an entirely new architecture without backward compatibility. It would be a higher-power sibling complementing the existing 8-bit 6800 line rather than a compatible successor. In the end, the 68000 did retain a bus protocol compatibility mode for existing 6800 peripheral devices, and a version with an 8-bit data bus was produced. However, the designers mainly focused on the future, or forward compatibility, which gave the M68K platform a head start against later 32-bit instruction set architectures. For instance, the CPU registers are 32 bits wide, though few self-contained structures in the processor itself operate on 32 bits at a time. The MACSS team drew heavily on the influence of minicomputer processor design, such as the PDP-11 and VAX systems, which were similarly microcoded.
Motorola 68000
68 Katy - 68000 Linux on a Solderless Breadboard
RetroActivo #44 Historia del procesador Motorola 68000
68000 running Linux kernel 3.7 and playing mp3!
Diesel 67 - 68 - 1/2 (BB 67000 et A1A A1A 68000 - 67000 and 68000 series)
The Deadliners - 68000 Reasons
Old 68000 Amiga code: 3dm.s
68000 Freerun Test
يوميا 68000 شخص يعتنقون الإسلام Everyday 68000 people convert to Islam
FIAB - The 68000 Heart on Fire
Dimension 68000 - Review
TCDD E 68000 Cevher Yük Treni
Des A1A 68000 à Buzançais (Aout 1997)
Z125 68,000 กว่า (ราคาส่ง) + KSR ชน MSX125 GPX Demon Yamaha พร้อมลุยปีหน้า 2016