<processor> (MC68000) The first member of Motorola, Inc.'s family of 16- and 32-bit microprocessors. The successor to the Motorola 6809 and followed by the Motorola 68010. The 68000 has 32-bit registers but only a 16-bit ALU and external data bus. It has 24-bit addressing and a {linear address space}, with none of the evil segment registers of Intel's contemporary processors that make programming them unpleasant. That means that a single directly accessed array or structure can be larger than 64KB in size. Addresses are computed as 32 bit, but the top 8 bits are cut to fit the address bus into a 64-pin package (address and data share a bus in the 40 pin packages of the 8086 and {Zilog Z8000}). The 68000 has sixteen 32-bit registers, split into data and address registers. One address register is reserved for the Stack Pointer. Any register, of either type, can be used for any function except direct addressing. Only address registers can be used as the source of an address, but data registers can provide the offset from an address. Like the Zilog Z8000, the 68000 features a supervisor and user mode, each with its own Stack Pointer. The {Zilog Z8000} and 68000 are similar in capabilities, but the 68000 is 32 bits internally, making it faster and eliminating forced segmentations. Like many other CPUs of its generation, it can fetch the next instruction during execution (2 stage pipeline). The 68000 was used in many workstations, notably early Sun-2 machines, and personal computers, notably {Apple Computer}'s first Macintoshes and the Amiga. It was also used in most of Sega's early arcade machines, and in the Genesis/Megadrive consoles. Variants of the 68000 include the 68HC000 (a low-power HCMOS implementation) and the 68008 (an eight-bit data bus version used in the Sinclair QL). ["The 68000: Principles and Programming", Leo Scanlon, 1981]. (2003-07-11)

Motorola 68000

Motorola 68000

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 680x0 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 and modifications to some user/superuser instruction assignments. The Motorola 68030 was a {Motorola 68020} with an MMU and more minor enhancements. The 68050 would have been a 68040 with some bugs fixed, which didn't really warrant a new name so it was sold as a 68040. (1995-11-29)

<processor> Shorthand for any member for the Motorola 68000 family of microprocessors from Motorola, Inc. The "x" stands for 0, 1, 2, 3, 4 or 6. (1993-05-01)

Motorola 680x0

The Motorola C168/C168i is a low-cost 850/1900-band GSM mobile phone, made by Motorola. It was released in the fourth quarter of 2005.

This is a list of Motorola products. Motorola Mobility is an American subsidiary company of Chinese multinational technology company Lenovo that manufactures consumer electronics and telecommunications products.

Motorola, Inc.

<company> One of the world's leading providers of wireless communications, semiconductors and advanced electronic systems and services. Major equipment businesses include cellular telephone, two-way radio, paging and data communications, personal communications, automotive, defense and space electronics, computers, satellite communications systems, police and emergency service radio systems, taxicab dispatching (radio) systems. Communication devices, computers and millions of consumer products are powered by Motorola semiconductors. They are probably best known in the computing world for their microprocessors, including the Motorola 6800 and {Motorola 68000} CISC families and Motorola 88000 RISCs, the Motorola DSP56000 digital signal processors and the PowerPC on which they collaborated. They also led the development of VMEbus. Quarterly sales $5400M, profits $367M (Aug 1994). See also Envoy, Monsoon, MPL. http://mot.com/. Address: Schaumberg, Illinois, USA. (1994-12-01)