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Microprocessor Memory Management Units
March/April 1990 (vol. 10 no. 2)
pp. 70-85

This tutorial describes the current crop of commercial memory management units (MMUs) for 32-bit microprocessors. The discussion includes both complex- and reduced-instruction-set computers (CISCs and RISCs). The rationale, principles, and issues related to hardware support for memory management and virtual memory are reviewed. The design and features of high-end microprocessor MMUs are reviewed and compared with respect to a common set of criteria. Special attention is paid to Unix requirements and multiprocessor, multiple MMU considerations. The MMUs covered are Intel 80386, i486, and i860; Motorola's 68851 (MMU for the 68020), 68030, 68040, and 88200 (MMU for the 88000 series); the Fujitsu MB86920 (Sparc MMU); and the MIPS R2000/R3000.

Citation:
Milan Milenkovic, "Microprocessor Memory Management Units," IEEE Micro, vol. 10, no. 2, pp. 70-85, March-April 1990, doi:10.1109/40.52948
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