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CONTENTS
CHAPTER 1 OUTLINE AND CONFIGURATION EXAMPLE OF F
2
MC-8FX CPU ........... 1
1.1 Outline of F
2
MC-8FX CPU .................................................................................................................. 2
1.2 Configuration Example of Device Using F
2
MC-8FX CPU .................................................................. 3
CHAPTER 2 MEMORY SPACE ........................................................................................ 5
2.1 CPU Memory Space ........................................................................................................................... 6
2.2 Memory Space and Addressing .......................................................................................................... 7
2.2.1 Data Area ...................................................................................................................................... 9
2.2.2 Program Area .............................................................................................................................. 11
2.2.3 Arrangement of 16-bit Data in Memory Space ............................................................................ 13
CHAPTER 3 REGISTERS ............................................................................................... 15
3.1 F
2
MC-8FX Registers ........................................................................................................................ 16
3.2 Program Counter (PC) and Stack Pointer (SP) ................................................................................ 17
3.3 Accumulator (A) and Temporary Accumulator (T) ............................................................................ 18
3.3.1 How To Use The Temporary Accumulator (T) ............................................................................. 20
3.3.2 Byte Data Transfer and Operation of Accumulator (A) and Temporary Accumulator (T) ............ 21
3.4 Program Status (PS) ......................................................................................................................... 23
3.5 Index Register (IX) and Extra Pointer (EP) ....................................................................................... 26
3.6 Register Banks ................................................................................................................................. 27
3.7 Direct Banks ..................................................................................................................................... 28
CHAPTER 4 INTERRUPT PROCESSING ...................................................................... 29
4.1 Outline of Interrupt Operation ........................................................................................................... 30
4.2 Interrupt Enable/Disable and Interrupt Priority Functions ................................................................. 32
4.3 Creating an Interrupt Processing Program ....................................................................................... 34
4.4 Multiple Interrupt ............................................................................................................................... 36
4.5 Reset Operation ................................................................................................................................ 37
CHAPTER 5 CPU SOFTWARE ARCHITECTURE ......................................................... 39
5.1 Types of Addressing Modes ............................................................................................................. 40
5.2 Special Instructions ........................................................................................................................... 43
CHAPTER 6 DETAILED RULES FOR EXECUTION INSTRUCTIONS .......................... 47
6.1 ADDC (ADD Byte Data of Accumulator and Temporary Accumulator with Carry to Accumulator)
48
6.2 ADDC (ADD Byte Data of Accumulator and Memory with Carry to Accumulator) ............................ 50
6.3 ADDCW (ADD Word Data of Accumulator and Temporary Accumulator with Carry to Accumulator)
52
6.4 AND (AND Byte Data of Accumulator and Temporary Accumulator to Accumulator) ...................... 54
6.5 AND (AND Byte Data of Accumulator and Memory to Accumulator) ............................................... 56
6.6 ANDW (AND Word Data of Accumulator and Temporary Accumulator to Accumulator) ................. 58