User’s Manual U16896EJ2V0UD
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16.13.2 When communication reservation function is disabled (IICF0.IICRSV0 bit = 1) ...........................514
16.14 Cautions.................................................................................................................................... 515
16.15 Communication Operations.................................................................................................... 516
16.15.1 Master operation in single master system ....................................................................................517
16.15.2 Master operation in multimaster system .......................................................................................518
16.15.3 Slave operation.............................................................................................................................521
16.16 Timing of Data Communication.............................................................................................. 524
CHAPTER 17 INTERRUPT/EXCEPTION PROCESSING FUNCTION................................................531
17.1 Overview ................................................................................................................................... 531
17.1.1 Features .......................................................................................................................................531
17.2 Non-Maskable
Interrupts......................................................................................................... 534
17.2.1 Operation......................................................................................................................................537
17.2.2 Restore .........................................................................................................................................538
17.2.3 NP flag..........................................................................................................................................539
17.3 Maskable
Interrupts ................................................................................................................. 540
17.3.1 Operation......................................................................................................................................540
17.3.2 Restore .........................................................................................................................................542
17.3.3 Priorities
of
maskable interrupts ...................................................................................................543
17.3.4 Interrupt
control register (xxlCn) ...................................................................................................547
17.3.5 Interrupt mask registers 0, 1, 3 (IMR0, IMR1, IMR3) ....................................................................549
17.3.6 In-service
priority register (ISPR)..................................................................................................550
17.3.7 ID flag ...........................................................................................................................................551
17.3.8 Watchdog timer mode register 1 (WDTM1) ..................................................................................552
17.4 External
Interrupt
Request Input Pins (NMI, INTP0 to INTP7) ............................................. 553
17.4.1 Noise
elimination ..........................................................................................................................553
17.4.2 Edge
detection..............................................................................................................................555
17.5 Software
Exceptions................................................................................................................ 559
17.5.1 Operation......................................................................................................................................559
17.5.2 Restore .........................................................................................................................................560
17.5.3 EP
flag ..........................................................................................................................................561
17.6 Exception
Trap ......................................................................................................................... 562
17.6.1 Illegal opcode ...............................................................................................................................562
17.6.2 Debug trap....................................................................................................................................564
17.7 Multiple Interrupt Servicing Control ...................................................................................... 566
17.8 Interrupt Response Time......................................................................................................... 568
17.9 Periods in Which Interrupts Are Not Acknowledged by CPU ............................................. 569
17.10 Cautions.................................................................................................................................... 569
CHAPTER 18 KEY INTERRUPT FUNCTION ......................................................................................570
18.1 Function .................................................................................................................................... 570
18.2 Register..................................................................................................................................... 571
CHAPTER 19 STANDBY FUNCTION ...................................................................................................572
19.1 Overview ................................................................................................................................... 572
19.2 Registers................................................................................................................................... 575
19.3 HALT
Mode ............................................................................................................................... 578
Содержание V850ES/KE1+
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