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PREFACE
Objectives and Intended Reader
The MB91F109 has been developed as one of the "32-bit single-chip micr ocontroller FR30
series" products that use new RISC architecture CPUs as their cores. It has optimal
specifications for embedding applications that require high C PU processing power.
This manual explains the functions and operations of the MB91F109 for th e engineers who
actually develop products using the MB91F109. Read this manual thorough ly. Refer to the
instruction manual for details on individual instr uctions.
Trademarks
FR stands for FUJITSU RISC controller, a product of Fujitsu Limited.
Embedded AlgorithmTM is a trademark of Advanced Micr o Devices, Inc.