Filter
Top Products
i
PREFACE
■ Objectives and targeted reader
FR81 Family is a 32 bit single chip microcontroller with CPU of new RISC Architecture as the core. FR81
Family has specifications that are optimum for embedded use requiring high performance CPU processing
power.
This manual explains the programming model and execution instructions for engineers developing a
product using this FR81 Family Microcontroller, especially the programmers who produce programs using
assembly language of the assembler for FR/FR80/FR81 Family.
For the rules of assembly grammar language and the method of use of Assembler Programs, kindly refer to
"FR Family Assembler Manual".
*: FR, the abbreviation of Fujitsu RISC controller, is a line of products of Fujitsu Microelectronics Limited.
Other company names and brand names are the trademarks or registered trademarks of their respective
owners.
■ Organization of this Manual
This manual consists of the following 7 chapters and 1 supplement.
CHAPTER 1 OVERVIEW OF FR81 FAMILY CPU
This chapter describes the features of FR81 Family CPU and its differences from hitherto FR Family.
CHAPTER 2 MEMORY ARCHITECTURE
This chapter describes Memory Architecture of the CPU of FR81 Family. Memory Architecture is the
method of allocation of memory space and access to this memory space.
CHAPTER 3 PROGRAMMING MODEL
This chapter describes registers in the CPU existing as programming model of FR81 Family CPU.
CHAPTER 4 RESET AND "EIT" PROCESSING
This chapter describes resetting of FR81 Family CPU and EIT processing. EIT processing is the generic
term for exceptions, interruption and trap.
CHAPTER 5 PIPELINE OPERATION
This chapter describes pipeline operation and delay divergence, the salient feature of FR81 Family CPU.
CHAPTER 6 INSTRUCTION OVERVIEW
This chapter describes outline of commands of FR81 Family CPU.
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
This chapter describes Execution Instructions of FR81 Family CPU in Reference Format in the
alphabetical order.
APPENDIX
It contains instruction list and instruction map of FR81 Family CPU.