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User’s Manual U12697EJ3V0UM
18.5.6 Wait signal (WAIT) ...................................................................................................................... 313
18.5.7 I
2
C interrupt request (INTIIC0) .................................................................................................... 315
18.5.8 Interrupt request (INTIIC0) generation timing and wait control ................................................... 333
18.5.9 Address match detection ............................................................................................................ 334
18.5.10 Error detection ............................................................................................................................ 334
18.5.11 Extended codes .......................................................................................................................... 335
18.5.12 Arbitration .................................................................................................................................... 335
18.5.13 Wake-up function ........................................................................................................................ 337
18.5.14 Communication reservation ........................................................................................................ 338
18.5.15 Additional warnings ..................................................................................................................... 341
18.5.16 Communication operation ........................................................................................................... 342
18.6 Timing Charts ........................................................................................................................ 344
CHAPTER 19 CLOCK OUTPUT FUNCTION ........................................................................................ 351
19.1 Functions ............................................................................................................................... 351
19.2 Configuration ........................................................................................................................ 352
19.3 Control Registers .................................................................................................................. 352
CHAPTER 20 Buzzer Output Functions ............................................................................................. 355
20.1 Function ................................................................................................................................. 355
20.2 Configuration ........................................................................................................................ 355
20.3 Control Registers .................................................................................................................. 356
CHAPTER 21 EDGE DETECTION FUNCTION .................................................................................... 358
21.1 Control Registers .................................................................................................................. 358
21.2 Edge Detection of P00 to P05 Pins ..................................................................................... 359
CHAPTER 22 INTERRUPT FUNCTIONS ............................................................................................. 360
22.1 Interrupt Request Sources ................................................................................................... 361
22.1.1 Software interrupts ...................................................................................................................... 363
22.1.2 Operand error interrupts ............................................................................................................. 363
22.1.3 Non-maskable interrupts ............................................................................................................. 363
22.1.4 Maskable interrupts ..................................................................................................................... 363
22.2 Interrupt Servicing Modes ................................................................................................... 364
22.2.1 Vectored interrupt servicing ........................................................................................................ 364
22.2.2 Macro servicing ........................................................................................................................... 364
22.2.3 Context switching ........................................................................................................................ 364
22.3 Interrupt Servicing Control Registers ................................................................................. 365
22.3.1 Interrupt control registers ............................................................................................................ 367
22.3.2 Interrupt mask registers (MK0, MK1) .......................................................................................... 371
22.3.3 In-service priority register (ISPR) ................................................................................................ 373
22.3.4 Interrupt mode control register (IMC) .......................................................................................... 374
22.3.5 Watchdog timer mode register (WDM) ....................................................................................... 375
22.3.6 Interrupt selection control register (SNMI) .................................................................................. 376
22.3.7 Program status word (PSW) ....................................................................................................... 377
22.4 Software Interrupt Acknowledgment Operations ............................................................... 378
22.4.1 BRK instruction software interrupt acknowledgment operation .................................................. 378
