The 68LC040 is a low cost version of the Freescale 68040 microprocessor with no FPU. This makes it less expensive and draw less power. Although the CPU now fits into a feature chart more like the 68020, it continues to include the 040's caches and pipeline and is thus significantly faster than the 020. American corporation Freescale Semiconductor, Inc. ... The Motorola 68040 is a microprocessor from Motorola. ... 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). ... A floating point unit (FPU) is a part of a CPU specially designed to carry out operations on floating point numbers. ... The Motorola 68020 is a microprocessor from Motorola. ... Look up cache in Wiktionary, the free dictionary. ...

Some mask revisions of the 68LC040 contained a bug which prevents various software FPU emulators from operating correctly. These revisions are typically found in 68LC040-based Apple Macintosh computers. The bug triggers if an FPU instruction which would trigger an exception resides at the end of a page, and the next page is swapped out. In that case, the CPU will page fault with the PC pointing at that FPU instruction, and then fail to trigger the FPU exception, leading to a variety of errors. In computer science, a mask is some data that, along with an operation, are used in order to extract information stored elsewhere. ... A software bug is an error, flaw, mistake, failure, or fault in a computer program that prevents it from working as intended, or produces an incorrect result. ... An emulator reproducing a console games playable atmosphere on a Windows computer. ... The first Macintosh computer, introduced in 1984. ... In computer science, an instruction typically refers to a single operation of a processor within a computer architecture. ... Exception handling is a programming language construct or computer hardware mechanism designed to handle runtime errors or other problems (exceptions) which occur during the execution of a computer program. ... In computer storage technology, a page fault is an interrupt (or exception) to the sofware raised by the hardware, when a program accesses a page that is not mapped in physical memory. ...

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In keeping with general Freescale naming, this CPU is often referred to as the LC40.