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CONTENTS
CHAPTER 1 OVERVIEW ................................................................................................... 1
1.1 Features of MB89202/F202RA Series ................................................................................................ 2
1.2 MB89202/F202RA Series Product Lineup .......................................................................................... 4
1.3 Differences between Models .............................................................................................................. 6
1.4 Block Diagram of MB89202/F202RA Series ....................................................................................... 7
1.5 Pin Assignment ................................................................................................................................... 8
1.6 Package Dimensions ........................................................................................................................ 10
1.7 Pin Functions Description ................................................................................................................. 12
1.8 I/O Circuit Types ............................................................................................................................... 14
CHAPTER 2 HANDLING DEVICES ................................................................................ 17
2.1 Precautions on Handling Devices ..................................................................................................... 18
CHAPTER 3 CPU ............................................................................................................ 21
3.1 Memory Space .................................................................................................................................. 22
3.1.1 Specific-purpose Areas ............................................................................................................... 24
3.1.2 Location of 16-bit Data on Memory ............................................................................................. 26
3.2 Dedicated Register ........................................................................................................................... 27
3.2.1 Condition Code Register (CCR) .................................................................................................. 29
3.2.2 Register Bank Pointer (RP) ......................................................................................................... 31
3.3 General-Purpose Registers .............................................................................................................. 32
3.4 Interrupts ........................................................................................................................................... 34
3.4.1 Interrupt Level Setting Registers (ILR1 to ILR4) .......................................................................... 36
3.4.2 Steps in the Interrupt Operation .................................................................................................. 37
3.4.3 Multiple Interrupts ........................................................................................................................ 39
3.4.4 Interrupt Processing Time ........................................................................................................... 40
3.4.5 Stack Operation at Interrupt Processing ...................................................................................... 41
3.4.6 Stack Area for Interrupt Processing ............................................................................................. 42
3.5 Reset ................................................................................................................................................ 43
3.5.1 Reset Flag Register (RSFR) ........................................................................................................ 45
3.5.2 External Reset Pin ....................................................................................................................... 47
3.5.3 Reset Operation .......................................................................................................................... 48
3.5.4 State of Each Pin at Reset .......................................................................................................... 50
3.6 Clock ................................................................................................................................................. 51
3.6.1 Clock Generator .......................................................................................................................... 53
3.6.2 Clock Controller ........................................................................................................................... 54
3.6.3 System Clock Control Register (SYCC) ...................................................................................... 56
3.6.4 Clock Mode .................................................................................................................................. 58
3.6.5 Oscillation Stabilization Wait Time .............................................................................................. 60
3.7 Standby Mode (Low-Power Consumption Mode) ............................................................................. 62
3.7.1 Operations in Standby Mode ....................................................................................................... 63
3.7.2 Sleep Mode ................................................................................................................................. 64
3.7.3 Stop Mode ................................................................................................................................... 65