
User’s Manual U16541EJ4V0UD
13
10.2
Configuration .........................................................................................................................425
10.3
Control Registers ..................................................................................................................427
10.4
Operation................................................................................................................................431
Operation as watch timer......................................................................................................... 431
10.4.2
Operation as interval timer....................................................................................................... 432
10.4.3
Cautions .................................................................................................................................. 433
CHAPTER 11 FUNCTIONS OF WATCHDOG TIMER 2....................................................................434
11.1
Functions ...............................................................................................................................434
11.2
Configuration .........................................................................................................................435
11.3
Registers ................................................................................................................................436
11.4
Operation................................................................................................................................439
CHAPTER 12 REAL-TIME OUTPUT FUNCTION (RTO) ...................................................................440
12.1
Function .................................................................................................................................440
12.2
Configuration .........................................................................................................................441
12.3
Registers ................................................................................................................................443
12.4
Operation................................................................................................................................445
12.5
Usage......................................................................................................................................446
12.6
Cautions .................................................................................................................................446
CHAPTER 13 A/D CONVERTER ..........................................................................................................447
13.1
Overview.................................................................................................................................447
13.2
Functions ...............................................................................................................................447
13.3
Configuration .........................................................................................................................448
13.4
Registers ................................................................................................................................451
13.5
Operation................................................................................................................................461
13.5.1
Basic operation........................................................................................................................ 461
13.5.2
Conversion operation timing .................................................................................................... 462
13.5.3
Trigger mode ........................................................................................................................... 463
13.5.4
Operation mode....................................................................................................................... 465
13.5.5
Power-fail compare mode........................................................................................................ 469
13.6
Cautions .................................................................................................................................474
13.7
How to Read A/D Converter Characteristics Table............................................................478
CHAPTER 14 D/A CONVERTER ..........................................................................................................482
14.1
Functions ...............................................................................................................................482
14.2
Configuration .........................................................................................................................482
14.3
Registers ................................................................................................................................483
14.4
Operation................................................................................................................................485
14.4.1
Operation in normal mode ....................................................................................................... 485
14.4.2
Operation in real-time output mode ......................................................................................... 485
14.4.3
Cautions .................................................................................................................................. 486
CHAPTER 15 ASYNCHRONOUS SERIAL INTERFACE A (UARTA) ..............................................487
15.1
Mode Switching of UARTA and Other Serial Interfaces....................................................487
15.1.1
CSIB4 and UARTA0 mode switching ...................................................................................... 487