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13.4 Operations ............................................................................................................................. 236
13.4.1 Basic operations of A/D converter .............................................................................................. 236
13.4.2 Input voltage and conversion result ............................................................................................ 238
13.4.3 Operations mode of A/D converter .............................................................................................. 239
13.5 Reading the A/D Converter Characteristics Table ............................................................. 242
13.6 Cautions ................................................................................................................................. 245
CHAPTER 14 D/A CONVERTER ....................................................................................................... 252
14.1 Function ................................................................................................................................. 252
14.2 Configuration ........................................................................................................................ 252
14.3 Control Registers .................................................................................................................. 254
14.4 Operation ............................................................................................................................... 255
14.5 Cautions ................................................................................................................................ 255
CHAPTER 15 SERIAL INTERFACE OVERVIEW ............................................................................. 257
CHAPTER 16 ASYNCHRONOUS SERIAL INTERFACE/3-WIRE SERIAL I/O ............................. 259
16.1 Switching Asynchronous Serial Interface Mode and 3-Wire Serial I/O Mode ................. 260
16.2 Asynchronous Serial Interface Mode ................................................................................. 261
16.2.1 Configuration ............................................................................................................................... 261
16.2.2 Control registers .......................................................................................................................... 264
16.3 Operation ............................................................................................................................... 268
16.3.1 Operation stop mode .................................................................................................................. 268
16.3.2 Asynchronous serial interface (UART) mode .............................................................................. 269
16.3.3 Standby mode operation ............................................................................................................. 280
16.4 3-Wire Serial I/O Mode .......................................................................................................... 281
16.4.1 Configuration .............................................................................................................................. 281
16.4.2 Control registers .......................................................................................................................... 283
16.4.3 Operation .................................................................................................................................... 284
CHAPTER 17 3-WIRE SERIAL I/O MODE ...................................................................................... 287
17.1 Function ................................................................................................................................. 287
17.2 Configuration ........................................................................................................................ 287
17.3 Control Registers .................................................................................................................. 289
17.4 Operation ............................................................................................................................... 290
C BUS MODE ( µ PD784225Y SUBSERIES ONLY) .................................................... 293
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CHAPTER 18 I
18.1 Function Overview ................................................................................................................ 293
18.2 Configuration ........................................................................................................................ 294
18.3 Control Registers .................................................................................................................. 297
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18.4 I
C Bus Mode Function ........................................................................................................ 308
18.4.1 Pin configuration ......................................................................................................................... 308
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18.5 I
C Bus Definitions and Control Method ............................................................................ 309
18.5.1 Start condition ............................................................................................................................. 309
18.5.2 Address ....................................................................................................................................... 310
18.5.3 Transfer direction specification ................................................................................................... 310
18.5.4 Acknowledge signal (ACK) ......................................................................................................... 311
18.5.5 Stop condition ............................................................................................................................. 312
User's Manual U12697EJ3V0UM
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