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User’s Manual U18417EJ4V0UD
14
14.5.12 Extension code............................................................................................................................582
14.5.13 Arbitration....................................................................................................................................583
14.5.14 Wakeup function .........................................................................................................................584
14.5.15 Communication reservation.........................................................................................................585
14.5.16 Cautions ......................................................................................................................................589
14.5.17 Communication operations..........................................................................................................590
14.5.18 Timing of I
2C interrupt request (INTIIC0) occurrence...................................................................598
14.6 Timing Charts...................................................................................................................................... 619
CHAPTER 15 MULTIPLIER................................................................................................................... 626
15.1 Functions of Multiplier....................................................................................................................... 626
15.2 Configuration of Multiplier ................................................................................................................ 627
15.3 Operation of Multiplier ....................................................................................................................... 628
CHAPTER 16 DMA CONTROLLER ..................................................................................................... 629
16.1 Functions of DMA Controller ............................................................................................................ 629
16.2 Configuration of DMA Controller ..................................................................................................... 630
16.3 Registers to Controlling DMA Controller ........................................................................................ 633
16.4 Operation of DMA Controller ............................................................................................................ 636
16.4.1 Operation procedure .....................................................................................................................636
16.4.2 Transfer mode ...............................................................................................................................637
16.4.3 Termination of DMA transfer .........................................................................................................637
16.5 Example of Setting of DMA Controller ............................................................................................ 638
16.5.1 CSI consecutive transmission .......................................................................................................638
16.5.2 CSI master reception.....................................................................................................................640
16.5.3 CSI transmission/reception ...........................................................................................................642
16.5.4 Consecutive capturing of A/D conversion results ..........................................................................644
16.5.5 UART consecutive reception + ACK transmission ........................................................................646
16.5.6 Holding DMA transfer pending by DWAITn ...................................................................................648
16.5.7 Forced termination by software .....................................................................................................649
16.6 Cautions on Using DMA Controller ................................................................................................. 651
CHAPTER 17 INTERRUPT FUNCTIONS ............................................................................................ 654
17.1 Interrupt Function Types................................................................................................................... 654
17.2 Interrupt Sources and Configuration............................................................................................... 654
17.3 Registers Controlling Interrupt Functions...................................................................................... 660
17.4 Interrupt Servicing Operations ......................................................................................................... 670
17.4.1 Maskable interrupt acknowledgment .............................................................................................670
17.4.2 Software interrupt request acknowledgment .................................................................................672
17.4.3 Multiple interrupt servicing.............................................................................................................673
17.4.4 Interrupt request hold ....................................................................................................................676
CHAPTER 18 KEY INTERRUPT FUNCTION ..................................................................................... 677
18.1 Functions of Key Interrupt ................................................................................................................ 677
18.2 Configuration of Key Interrupt.......................................................................................................... 677
18.3 Register Controlling Key Interrupt................................................................................................... 678