µPD78217A, 78218A
CONTENTS
1. DIFFERENCES BETWEEN µPD78218A AND µPD78214 SUBSERIES ..................................................10
2. PIN FUNCTIONS ........................................................................................................................................11
2.1 PORTS .................................................................................................................................................................11
2.2 NON-PORT PINS ................................................................................................................................................12
2.3 PIN I/O CIRCUITS AND UNUSED PIN CONNECTION...................................................................................13
3. INTERNAL BLOCK FUNCTIONS ..............................................................................................................15
3.1 MEMORY SPACE ...............................................................................................................................................15
3.2 PORTS .................................................................................................................................................................17
3.3 REAL-TIME OUTPUT PORT ..............................................................................................................................19
3.4 TIMER/COUNTER UNIT ....................................................................................................................................20
3.5 A/D CONVERTER...............................................................................................................................................22
3.6 SERIAL INTERFACE ...........................................................................................................................................24
3.6.1
3.6.2
Asynchronous Serial Interface ........................................................................................................25
Clock Synchronous Serial Interface................................................................................................26
4. INTERNAL/EXTERNAL CONTROL FUNCTION ......................................................................................27
4.1 INTERRUPTS ..................................................................................................................................................... 27
4.1.1
4.1.2
4.1.3
4.1.4
Interrupt Sources ..............................................................................................................................28
Vectored Interrupt.............................................................................................................................30
Macro Service ....................................................................................................................................30
Macro Service Application Examples.............................................................................................31
4.2 LOCAL BUS INTERFACE ...................................................................................................................................33
4.2.1
4.2.2
4.2.3
Memory Expansion ...........................................................................................................................33
Programmable Wait ..........................................................................................................................33
Pseudo-Static RAM Refresh Function ............................................................................................33
4.3 STANDBY ...........................................................................................................................................................34
4.4 RESET..................................................................................................................................................................35
5. INSTRUCTION SET ...................................................................................................................................36
6. ELECTRICAL SPECIFICATIONS................................................................................................................40
7. PACKAGE DRAWINGS .............................................................................................................................57
8. RECOMMENDED SOLDERING CONDITIONS ........................................................................................59
APPENDIX A. DEVELOPMENT TOOLS.........................................................................................................60
APPENDIX B. RELATED DOCUMENTS.........................................................................................................62
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