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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
