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15
User’s Manual U12697EJ4V1UD
13.4 Operations ............................................................................................................................. 232
13.4.1
Basic operations of A/D converter ............................................................................................ 232
13.4.2
Input voltage and conversion result .......................................................................................... 234
13.4.3
Operation modes of A/D converter ........................................................................................... 235
13.5 Reading A/D Converter Characteristics Table ................................................................... 238
13.6 Cautions ................................................................................................................................ 241
CHAPTER 14 D/A CONVERTER ....................................................................................................... 248
14.1 Function ................................................................................................................................. 248
14.2 Configuration ........................................................................................................................ 248
14.3 Control Registers .................................................................................................................. 250
14.4 Operation ............................................................................................................................... 251
14.5 Cautions ................................................................................................................................ 251
CHAPTER 15 SERIAL INTERFACE OVERVIEW ............................................................................. 253
CHAPTER 16 ASYNCHRONOUS SERIAL INTERFACE/3-WIRE SERIAL I/O ............................. 255
16.1 Switching Asynchronous Serial Interface Mode and 3-Wire Serial I/O Mode ................. 256
16.2 Asynchronous Serial Interface Mode ................................................................................. 258
16.2.1
Configuration ............................................................................................................................. 258
16.2.2
Control registers ........................................................................................................................ 261
16.3 Operation ............................................................................................................................... 266
16.3.1
Operation stopped mode .......................................................................................................... 266
16.3.2
Asynchronous serial interface (UART) mode ............................................................................ 267
16.3.3
Standby mode operation ........................................................................................................... 278
16.4 3-Wire Serial I/O Mode .......................................................................................................... 279
16.4.1
Configuration ............................................................................................................................. 279
16.4.2
Control registers ........................................................................................................................ 281
16.4.3
Operation .................................................................................................................................. 282
CHAPTER 17 3-WIRE SERIAL I/O MODE ...................................................................................... 285
17.1 Function ................................................................................................................................. 285
17.2 Configuration ........................................................................................................................ 285
17.3 Control Registers .................................................................................................................. 287
17.4 Operation ............................................................................................................................... 289
CHAPTER 18 I2C BUS MODE (
PD784225Y SUBSERIES ONLY) .............................................. 292
18.1 Function Overview ................................................................................................................ 292
18.2 Configuration ........................................................................................................................ 293
18.3 Control Registers .................................................................................................................. 296
18.4 I2C Bus Mode Function ......................................................................................................... 307
18.4.1
Pin configuration ....................................................................................................................... 307
18.5 I2C Bus Definitions and Control Method ............................................................................. 308
18.5.1
Start condition ........................................................................................................................... 308
18.5.2
Address ..................................................................................................................................... 309
18.5.3
Transfer direction specification ................................................................................................. 309
18.5.4
Acknowledge signal (ACK) ....................................................................................................... 310
18.5.5
Stop condition ........................................................................................................................... 311