UPD78F9234MC-5A4-A Datasheet, PDF (13/419 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 12 MULTIPLIER ..................................................................................................................220
12.1 Multiplier Function ...................................................................................................................220
12.2 Multiplier Configuration...........................................................................................................220
12.3 Multiplier Control Register ......................................................................................................222
12.4 Multiplier Operation .................................................................................................................223
CHAPTER 13 INTERRUPT FUNCTIONS ............................................................................................225
13.1 Interrupt Function Types.........................................................................................................225
13.2 Interrupt Sources and Configuration .....................................................................................226
13.3 Interrupt Function Control Registers .....................................................................................228
13.4 Interrupt Servicing Operation .................................................................................................233
13.4.1 Maskable interrupt request acknowledgment operation ................................................................ 233
13.4.2 Multiple interrupt servicing............................................................................................................. 235
13.4.3 Interrupt request pending .............................................................................................................. 237
CHAPTER 14 STANDBY FUNCTION..................................................................................................238
14.1 Standby Function and Configuration.....................................................................................238
14.1.1 Standby function ........................................................................................................................... 238
14.1.2 Registers used during standby...................................................................................................... 240
14.2 Standby Function Operation...................................................................................................241
14.2.1 HALT mode ................................................................................................................................... 241
14.2.2 STOP mode .................................................................................................................................. 244
CHAPTER 15 RESET FUNCTION .......................................................................................................248
15.1 Register for Confirming Reset Source...................................................................................255
CHAPTER 16 POWER-ON-CLEAR CIRCUIT .....................................................................................256
16.1 Functions of Power-on-Clear Circuit .....................................................................................256
16.2 Configuration of Power-on-Clear Circuit ...............................................................................257
16.3 Operation of Power-on-Clear Circuit......................................................................................257
16.4 Cautions for Power-on-Clear Circuit ......................................................................................258
CHAPTER 17 LOW-VOLTAGE DETECTOR.......................................................................................260
17.1 Functions of Low-Voltage Detector........................................................................................260
17.2 Configuration of Low-Voltage Detector .................................................................................260
17.3 Registers Controlling Low-Voltage Detector.........................................................................261
17.4 Operation of Low-Voltage Detector........................................................................................263
17.5 Cautions for Low-Voltage Detector ........................................................................................ 266
CHAPTER 18 OPTION BYTE ...............................................................................................................269
18.1 Functions of Option Byte ........................................................................................................269
18.2 Format of Option Byte .............................................................................................................270
18.3 Caution When the RESET Pin Is Used as an Input-Only Port Pin (P34) .............................271
CHAPTER 19 FLASH MEMORY..........................................................................................................272
19.1 Features.....................................................................................................................................272
19.2 Memory Configuration .............................................................................................................273
User’s Manual U17446EJ5V0UD
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