NEC 78K0S/KB1+ User Manual page 11

CHAPTER 12 MULTIPLIER ..................................................................................................................217
12.1 Multiplier Function...................................................................................................................217
12.2 Multiplier Configuration ..........................................................................................................217
12.3 Multiplier Control Register......................................................................................................219
12.4 Multiplier Operation .................................................................................................................220
CHAPTER 13 INTERRUPT FUNCTIONS ............................................................................................222
13.1 Interrupt Function Types.........................................................................................................222
13.2 Interrupt Sources and Configuration.....................................................................................223
13.3 Interrupt Function Control Registers.....................................................................................225
13.4 Interrupt Servicing Operation.................................................................................................230
13.4.1 Maskable interrupt request acknowledgment operation ............................................................ 230
13.4.2 Multiple interrupt servicing......................................................................................................... 232
13.4.3 Interrupt request pending .......................................................................................................... 234
CHAPTER 14 STANDBY FUNCTION..................................................................................................235
14.1 Standby Function and Configuration ....................................................................................235
14.1.1 Standby function........................................................................................................................ 235
14.1.2 Registers used during standby .................................................................................................. 237
14.2 Standby Function Operation ..................................................................................................238
14.2.1 HALT mode ............................................................................................................................... 238
14.2.2 STOP mode .............................................................................................................................. 241
CHAPTER 15 RESET FUNCTION .......................................................................................................245
15.1 Register for Confirming Reset Source ..................................................................................252
CHAPTER 16 POWER-ON-CLEAR CIRCUIT .....................................................................................253
16.1 Functions of Power-on-Clear Circuit .....................................................................................253
16.2 Configuration of Power-on-Clear Circuit...............................................................................254
16.3 Operation of Power-on-Clear Circuit .....................................................................................254
16.4 Cautions for Power-on-Clear Circuit......................................................................................255
CHAPTER 17 LOW-VOLTAGE DETECTOR.......................................................................................257
17.1 Functions of Low-Voltage Detector .......................................................................................257
17.2 Configuration of Low-Voltage Detector.................................................................................257
17.3 Registers Controlling Low-Voltage Detector ........................................................................258
17.4 Operation of Low-Voltage Detector .......................................................................................260
17.5 Cautions for Low-Voltage Detector........................................................................................263
CHAPTER 18 OPTION BYTE ...............................................................................................................266
18.1 Functions of Option Byte ........................................................................................................266
18.2 Format of Option Byte .............................................................................................................267
18.3 Caution When the RESET Pin Is Used as an Input-Only Port Pin (P34).............................268
CHAPTER 19 FLASH MEMORY..........................................................................................................269
19.1 Features ....................................................................................................................................269
19.2 Memory Configuration.............................................................................................................270
User's Manual U17446EJ3V1UD
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