path: root/doc/supplements/m68k/preface.texi
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authorJoel Sherrill <>1997-05-27 12:40:11 +0000
committerJoel Sherrill <>1997-05-27 12:40:11 +0000
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+@c COPYRIGHT (c) 1988-1996.
+@c On-Line Applications Research Corporation (OAR).
+@c All rights reserved.
+@node Preface, CPU Model Dependent Features, Top, Top
+@end ifinfo
+@unnumbered Preface
+The Real Time Executive for Multiprocessor Systems (RTEMS)
+is designed to be portable across multiple processor
+architectures. However, the nature of real-time systems makes
+it essential that the application designer understand certain
+processor dependent implementation details. These processor
+dependencies include calling convention, board support package
+issues, interrupt processing, exact RTEMS memory requirements,
+performance data, header files, and the assembly language
+interface to the executive.
+This document discusses the Motorola MC68xxx
+architecture dependencies in this port of RTEMS. The MC68xxx
+family has a wide variety of CPU models within it. The part
+numbers for these models are generally divided into MC680xx and
+MC683xx. The MC680xx models are more general purpose processors
+with no integrated peripherals. The MC683xx models, on the
+other hand, are more specialized and have a variety of
+peripherals on chip including sophisticated timers and serial
+communications controllers.
+It is highly recommended that the Motorola MC68xxx
+RTEMS application developer obtain and become familiar with the
+documentation for the processor being used as well as the
+documentation for the family as a whole.
+@subheading Architecture Documents
+For information on the Motorola MC68xxx architecture,
+refer to the following documents available from Motorola
+@itemize @bullet
+@item @cite{M68000 Family Reference, Motorola, FR68K/D}.
+@end itemize
+For information on specific processor models and
+their associated coprocessors, refer to the following documents:
+@itemize @bullet
+@item @cite{MC68020 User's Manual, Motorola, MC68020UM/AD}.
+@item @cite{MC68881/MC68882 Floating-Point Coprocessor User's
+Manual, Motorola, MC68881UM/AD}.
+@end itemize