NEC 78K0S/KA1+ User Manual page 12

12.2 Interrupt Sources and Configuration .....................................................................................214
12.3 Interrupt Function Control Registers.....................................................................................217
12.4 Interrupt Servicing Operation .................................................................................................222
12.4.1 Maskable interrupt request acknowledgment operation.............................................................222
12.4.2 Multiple interrupt servicing .........................................................................................................224
12.4.3 Interrupt request pending...........................................................................................................226
CHAPTER 13 STANDBY FUNCTION ..................................................................................................227
13.1 Standby Function and Configuration.....................................................................................227
13.1.1 Standby function........................................................................................................................227
13.1.2 Registers used during standby ..................................................................................................229
13.2 Standby Function Operation...................................................................................................230
13.2.1 HALT mode ...............................................................................................................................230
13.2.2 STOP mode...............................................................................................................................233
CHAPTER 14 RESET FUNCTION .......................................................................................................237
14.1 Register for Confirming Reset Source...................................................................................244
CHAPTER 15 POWER-ON-CLEAR CIRCUIT .....................................................................................245
15.1 Functions of Power-on-Clear Circuit .....................................................................................245
15.2 Configuration of Power-on-Clear Circuit...............................................................................246
15.3 Operation of Power-on-Clear Circuit......................................................................................246
15.4 Cautions for Power-on-Clear Circuit......................................................................................247
CHAPTER 16 LOW-VOLTAGE DETECTOR .......................................................................................249
16.1 Functions of Low-Voltage Detector........................................................................................249
16.2 Configuration of Low-Voltage Detector .................................................................................249
16.3 Registers Controlling Low-Voltage Detector.........................................................................250
16.4 Operation of Low-Voltage Detector ........................................................................................252
16.5 Cautions for Low-Voltage Detector ........................................................................................256
CHAPTER 17 OPTION BYTE................................................................................................................259
17.1 Functions of Option Byte.........................................................................................................259
17.2 Format of Option Byte..............................................................................................................260
CHAPTER 18 FLASH MEMORY ..........................................................................................................262
18.1 Features .....................................................................................................................................262
18.2 Memory Configuration .............................................................................................................263
18.3 Functional Outline ....................................................................................................................264
18.4 Writing with Flash Programmer ..............................................................................................265
18.5 Programming Environment .....................................................................................................266
18.6 Pin Connection on Board.........................................................................................................268
18.6.1 X1 and X2 pins ..........................................................................................................................268
18.6.2 RESET pin.................................................................................................................................269
18.6.3 Port pins ....................................................................................................................................270
18.6.4 Power supply .............................................................................................................................270
18.7 On-Board and Off-Board Flash Memory Programming .......................................................271
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User's Manual U16898EJ3V0UD