UPD784915B Datasheet, PDF (10/86 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784915B, 784916B
CONTENTS
1. DIFFERENCES AMONG µPD784915 SUBSERIES PRODUCTS .................................................. 11
2. PIN FUNCTIONS .............................................................................................................................. 12
2.1 Port Pins ................................................................................................................................................ 12
2.2 Non-Port Pins ........................................................................................................................................ 13
2.3 I/O Circuits and Connection of Unused Pins ...................................................................................... 15
3. INTERNAL BLOCK FUNCTIONS .................................................................................................... 19
3.1 CPU Registers ....................................................................................................................................... 19
3.1.1 General-purpose registers ......................................................................................................... 19
3.1.2 Other CPU registers .................................................................................................................... 20
3.2 Memory Space ....................................................................................................................................... 20
3.3 Special Function Registers (SFRs) ..................................................................................................... 23
3.4 Ports ....................................................................................................................................................... 28
3.5 Real-time Output Port ........................................................................................................................... 29
3.6 Super Timer Unit ................................................................................................................................... 33
3.7 Serial Interface ...................................................................................................................................... 38
3.8 A/D Converter ........................................................................................................................................ 40
3.9 VCR Analog Circuits ............................................................................................................................. 41
3.10 Watch Function ..................................................................................................................................... 47
3.11 Clock Output Function ......................................................................................................................... 48
4. INTERNAL/EXTERNAL CONTROL FUNCTION ............................................................................ 49
4.1 Interrupt Function ................................................................................................................................. 49
4.1.1 Vector interrupt ........................................................................................................................... 51
4.1.2 Context switching ....................................................................................................................... 51
4.1.3 Macro service .............................................................................................................................. 52
4.1.4 Application example of macro service ..................................................................................... 54
4.2 Standby Function .................................................................................................................................. 57
4.3 Clock Generator Circuit ........................................................................................................................ 59
4.4 Reset Function ...................................................................................................................................... 60
5. INSTRUCTION SETS ....................................................................................................................... 61
6. ELECTRICAL CHARACTERISTICS ............................................................................................... 65
7. PACKAGE DRAWING ..................................................................................................................... 77
8. RECOMMENDED SOLDERING CONDITIONS ............................................................................... 78
APPENDIX A. DEVELOPMENT TOOLS ............................................................................................... 79
APPENDIX B. RELATED DOCUMENTS ............................................................................................... 81
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