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6
m
PD780973(A)
CONTENTS
1.
PIN CONFIGURATION (TOP VIEW).................................................................................................. 7
2.
BLOCK DIAGRAM ............................................................................................................................. 9
3.
PIN FUNCTIONS .............................................................................................................................. 10
3.1
Port Pins ..................................................................................................................................................... 10
3.2
Non-Port Pins ..............................................................................................................................................11
3.3
Pin I/O Circuits and Recommended Connection of Unused Pins............................................................ 12
4.
MEMORY SPACE ............................................................................................................................. 15
5.
PERIPHERAL HARDWARE FUNCTION FEATURE....................................................................... 16
5.1
Ports............................................................................................................................................................ 16
5.2
Clock Generator ......................................................................................................................................... 17
5.3
Timer/Event Counter .................................................................................................................................. 17
5.4
Clock Output Control Circuit ...................................................................................................................... 20
5.5
A/D Converter............................................................................................................................................. 21
5.6
Serial Interface ........................................................................................................................................... 22
5.7
LCD Controller/Driver................................................................................................................................. 23
5.8
Sound Generator ........................................................................................................................................ 24
5.9
Meter Controller/Driver............................................................................................................................... 24
5.10 EEPROM .................................................................................................................................................... 25
6.
INTERRUPT FUNCTIONS ............................................................................................................... 26
7.
STANDBY FUNCTIONS ................................................................................................................... 29
8.
RESET FUNCTIONS ........................................................................................................................ 29
9.
INSTRUCTION SET.......................................................................................................................... 30
10. ELECTRICAL SPECIFICATIONS (TARGET VALUE)..................................................................... 32
11. PACKAGE DRAWING ...................................................................................................................... 42
APPENDIX A. DEVELOPMENT TOOLS .............................................................................................. 43
APPENDIX B. RELATED DOCUMENTS.............................................................................................. 46