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User’s Manual U15109EJ3V0UD
17
CHAPTER 10 WATCHDOG TIMER FUNCTION................................................................................. 316
10.1 Functions ................................................................................................................................ 316
10.2 Configuration .......................................................................................................................... 318
10.3 Watchdog Timer Control Registers ...................................................................................... 318
10.4 Operation................................................................................................................................. 321
10.4.1
Operation as watchdog timer ................................................................................................. 321
10.4.2
Operation as interval timer ..................................................................................................... 322
10.5 Standby Function Control Register ...................................................................................... 323
CHAPTER 11 SERIAL INTERFACE FUNCTION................................................................................ 324
11.1 Overview.................................................................................................................................. 324
11.2 3-Wire Serial I/O (CSI0, CSI2, CSI3): 8 Bits........................................................................... 324
11.2.1
Configuration.......................................................................................................................... 325
11.2.2
CSIn control registers............................................................................................................. 326
11.2.3
Operations.............................................................................................................................. 328
11.3 3-Wire Serial I/O (CSI4): 8 to 16 Bits Variable ...................................................................... 331
11.3.1
Configuration.......................................................................................................................... 331
11.3.2
CSI4 control registers............................................................................................................. 334
11.3.3
Operations.............................................................................................................................. 338
11.4 3-Wire Serial I/O (CSI5, CSI6): 8 or 16 Bits ........................................................................... 343
11.4.1
Features ................................................................................................................................. 343
11.4.2
Configuration.......................................................................................................................... 344
11.4.3
Control registers..................................................................................................................... 346
11.4.4
Operation ............................................................................................................................... 354
11.4.5
Output pins............................................................................................................................. 369
11.5 I
2
C Bus ..................................................................................................................................... 370
11.5.1
Configuration.......................................................................................................................... 373
11.5.2
I
2
C control registers ................................................................................................................ 375
11.5.3
I
2
C bus mode functions .......................................................................................................... 388
11.5.4
I
2
C bus definitions and control methods ................................................................................. 389
11.5.5
I
2
C interrupt requests (INTIICn) .............................................................................................. 396
11.5.6
Interrupt request (INTIICn) generation timing and wait control .............................................. 414
11.5.7
Address match detection method........................................................................................... 415
11.5.8
Error detection........................................................................................................................ 415
11.5.9
Extension code....................................................................................................................... 415
11.5.10
Arbitration............................................................................................................................... 416
11.5.11
Wakeup function .................................................................................................................... 417
11.5.12
Communication reservation ................................................................................................... 418
11.5.13
Cautions ................................................................................................................................. 423
11.5.14
Communication operations .................................................................................................... 424
11.5.15
Timing of data communication ............................................................................................... 427
11.6 Asynchronous Serial Interface (UART0 to UART3)............................................................. 434
11.6.1
Configuration.......................................................................................................................... 434
11.6.2
UARTn control registers ......................................................................................................... 436
11.6.3
Operations.............................................................................................................................. 441