Motorola 68030 Processor from a Macintosh IIsi

The Motorola 68030 is a 32-bit microprocessor in Motorola's 68000 family. Released in 1987, the 68030 was the successor to the Motorola 68020, and was followed by the Motorola 68040. In keeping with general Motorola naming, this CPU is often referred to as the 030. Image File history File links Image of the Motorola 68030 processor from a Macintosh IIsi Photo courtesy of MrB File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Image of the Motorola 68030 processor from a Macintosh IIsi Photo courtesy of MrB File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... 32-bit is a term applied to processors, and computer architectures which manipulate the address and data in 32-bit chunks. ... Microprocessors, including an Intel 80486DX2 and an Intel 80386 A microprocessor (sometimes abbreviated µP) is a digital electronic component with miniaturized transistors on a single semiconductor integrated circuit (IC). ... Motorola (NYSE: MOT) is a global communications company based in Schaumburg, Illinois, a Chicago suburb. ... The Motorola 680x0, 0x0, m68k, or 68k family of CISC microprocessor CPU chips were 32-bit from the start, and were the primary competition for the Intel x86 family of chips. ... 1987 (MCMLXXXVII) is a common year starting on Thursday of the Gregorian calendar. ... Motorola 68020 The Motorola 68020 is a microprocessor from Motorola. ... The Motorola 68040 is a microprocessor from Motorola. ...

The 68030 features an on-chip split instruction and data cache of 256 bytes each. It also has an on-chip memory management unit. The 68881 and the faster 68882 FPU (floating point unit) chips could be used with the 68030. A lower cost version of the 68030, the Motorola 68EC030, was also released, lacking the on-chip MMU. A byte is commonly used as a unit of storage measurement in computers, regardless of the type of data being stored. ... MMU, short for Memory Management Unit, is a class of computer hardware components responsible for handling memory accesses requested by the CPU. Among the functions of such devices are the translation of virtual addresses to physical addresses (i. ... The Motorola 68881 was a floating-point coprocessor chip that was utilized in some computer systems that used the 68020 or 68030 CPU. The addition of the 68881 chip added substantial cost to the computer, but added a floating point unit that could rapidly perform floating point math calculations. ... The Motorola 68881 was a floating-point coprocessor chip that was utilized in some computer systems that used the 68020 or 68030 CPU. The addition of the 68881 chip added substantial cost to the computer, but added a floating point unit that could rapidly perform floating point math calculations. ... A floating point unit (FPU) is a part of a CPU specially designed to carry out operations on floating point numbers. ... The 68EC030 is a microprocessor from Motorola. ...

As a microarchitecture, the 68030 is uninteresting. It is little more than a 68020 core with an added data cache (which made little difference to performance) and a process shrink. Motorola used the process shrink to allow them to pack more hardware on the die. In this case it was the MMU, a 68851 compatible. Per clock, the 68030 did not differentiate itself in performance from the 68020 that it was derived from. The finer manufacturing process, however, allowed Motorola to scale the processor to 50 MHz. The EC variety topped out at 40 MHz.

The 68030 was used in many models of the Apple Macintosh IIx and Amiga series of personal computers as well as the NeXT Cube and some descendants of the Atari ST line such as the Atari TT and the Atari Falcon. Apple Computer, Inc. ... The Macintosh IIx was introduced by Apple in 1988 as an incremental update of the original Macintosh II model. ... The Amiga is a family of home/personal computers originally developed by Amiga Corporation as an advanced game console. ... The NeXT logo, designed by Paul Rand. ... The Atari 520ST Atari 1040STF with SC1224 color monitor The Atari ST is a home/personal computer that was commercially popular from 1985 to the early 1990s. ... Atari TT030 Computer The Atari TT was the fastest system that Atari ever built. ... The Atari Falcon The Atari Falcon was Ataris final computer product, more specifically named the Atari Falcon030 Computer System. ...

References

Although Cisco Systems' 2500 Series Router, a small-to-medium enterprise computer internetworking appliance, claims in software to utilize this processor, it is in fact an 68EC030 inside the router - very similar, but without an MMU. The Free On-line Dictionary of Computing (FOLDOC) is an on-line, searchable encyclopedic dictionary of computing subjects. ... GNU logo The GNU Free Documentation License (GNU FDL or simply GFDL) is a copyleft license for free content, designed by the Free Software Foundation (FSF) for the GNU project. ... Cisco Systems, Inc. ...

External links

• 68030 images and descriptions at cpu-collection.de

	List of Motorola/Freescale microprocessors
	The 6800 family : 6809 (see also: Hitachi 6309) 68000 family : 68000 | 68008 | 68010 | 68012 | 68020 | 68030 | 68040 | 68060 | ColdFire | DragonBall Pre-PowerPC RISC : 88000 Floating-point coprocessors : 68881, 68882 PowerPC family (as part of AIM) : PPC 7XX range (aka "PowerPC G3") | PPC 7XXX range (aka "PowerPC G4")