NEC 78K0 Series User Manual page 15

23.2 Configuration of Power-on-Clear Circuit............................................................................. 531
23.3 Operation of Power-on-Clear Circuit ................................................................................... 531
23.4 Cautions for Power-on-Clear Circuit.................................................................................... 534
CHAPTER 24 LOW-VOLTAGE DETECTOR ....................................................................................... 536
24.1 Functions of Low-Voltage Detector ..................................................................................... 536
24.2 Configuration of Low-Voltage Detector............................................................................... 536
24.3 Registers Controlling Low-Voltage Detector ...................................................................... 537
24.4 Operation of Low-Voltage Detector ..................................................................................... 540
24.4.1 When used as reset .................................................................................................................541
24.4.2 When used as interrupt ............................................................................................................546
24.5 Cautions for Low-Voltage Detector...................................................................................... 551
CHAPTER 25 OPTION BYTE............................................................................................................... 554
25.1 Functions of Option Bytes .................................................................................................... 554
25.2 Format of Option Byte ........................................................................................................... 555
CHAPTER 26 FLASH MEMORY.......................................................................................................... 558
26.1 Internal Memory Size Switching Register ........................................................................... 558
26.2 Internal Expansion RAM Size Switching Register.............................................................. 560
26.3 Writing with Flash Programmer ........................................................................................... 561
26.4 Programming Environment................................................................................................... 564
26.5 Communication Mode ........................................................................................................... 564
26.6 Handling of Pins on Board.................................................................................................... 566
26.6.1 FLMD0 pin ...............................................................................................................................566
26.6.2 Serial interface pins..................................................................................................................566
26.6.3 RESET pin ...............................................................................................................................568
26.6.4 Port pins...................................................................................................................................568
26.6.5 REGC pin.................................................................................................................................568
26.6.6 Other signal pins .......................................................................................................
Preliminary User's Manual U17260EJ3V1UD
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