ix
CONTENTS
CHAPTER 1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
OVERVIEW ................................................................................................... 1
MB89570 Series Features ..................................................................................................................... 2
Product Lineup in the MB89570 Series ................................................................................................. 5
Differences of Various Product and Precautions for Selecting the Products ......................................... 7
Block Diagram of the MB89570 Series .................................................................................................. 8
Pin Assignment ...................................................................................................................................... 9
Package Dimensions ........................................................................................................................... 10
Pin Description ..................................................................................................................................... 13
I/O Circuit Type .................................................................................................................................... 18
CHAPTER 2
2.1
HANDLING DEVICE ................................................................................... 23
Notes on Handling Devices ................................................................................................................. 24
CHAPTER 3
3.1
3.1.1
3.1.2
3.2
3.2.1
3.2.2
3.3
3.4
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.5
3.5.1
3.6
3.6.1
3.6.2
3.7
3.7.1
3.7.2
3.7.3
3.7.4
3.7.5
3.8
3.8.1
3.8.2
3.8.3
3.8.4
CPU ............................................................................................................. 25
Memory Space ..................................................................................................................................... 26
Special Areas ................................................................................................................................. 28
Storing 16-bit Data in Memory ........................................................................................................ 30
Dedicated Registers ............................................................................................................................ 32
Condition Code Register (CCR) ..................................................................................................... 34
Register Bank Pointer (RP) ............................................................................................................ 37
General-purpose Registers .................................................................................................................. 38
Interrupts ............................................................................................................................................. 40
Interrupt Level Setting Registers (ILR1, ILR2, ILR3, ILR4) ............................................................ 42
Interrupt Processing ....................................................................................................................... 44
Multiple Interrupts ........................................................................................................................... 46
Interrupt Processing Time .............................................................................................................. 47
Stack Operation during Interrupt Processing .................................................................................. 48
Stack Area for Interrupt Processing ................................................................................................ 49
Resets ................................................................................................................................................. 50
Reset Flag Register (RSFR) ........................................................................................................... 52
External Reset Pin ............................................................................................................................... 54
Reset Operation ............................................................................................................................. 55
Pin States during Reset .................................................................................................................. 57
Clock .................................................................................................................................................... 58
Clock Generator ............................................................................................................................. 60
Clock Controller .............................................................................................................................. 62
System Clock Control Register (SYCC) ......................................................................................... 64
Clock Modes ................................................................................................................................... 67
Oscillation Stabilization Wait Time ................................................................................................. 70
Standby Mode (Low Power Consumption) .......................................................................................... 72
Operating State in Standby Mode .................................................................................................. 73
Sleep Mode .................................................................................................................................... 74
Stop Mode ...................................................................................................................................... 75
Watch Mode ................................................................................................................................... 77