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13.4.7 Serial Switch Register (SSEL) ................................................................................................... 301
13.5 Interrupt of UART ............................................................................................................................ 303
13.6 Operations of UART Functions ....................................................................................................... 304
13.6.1 Transmission Operations (Operating Mode 0, 1, 2, and 3) ....................................................... 306
13.6.2 Reception Operations (Operating Mode 0, 1, or 3) ................................................................... 307
13.6.3 Reception Operations (Operating Mode 2 Only) ....................................................................... 309
13.7 Program Example for UART ........................................................................................................... 311
CHAPTER 14 8-BIT SERIAL I/O ..................................................................................... 313
14.1 Overview of 8-Bit Serial I/O ............................................................................................................ 314
14.2 Configuration of 8-Bit Serial I/O ...................................................................................................... 315
14.3 Pins of 8-Bit Serial I/O .................................................................................................................... 317
14.4 Registers of 8-Bit Serial I/O ............................................................................................................ 319
14.4.1 Serial Mode Register (SMR) ...................................................................................................... 320
14.4.2 Serial Data Register (SDR) ....................................................................................................... 323
14.5 Interrupt of 8-Bit Serial I/O .............................................................................................................. 324
14.6 Operations of Serial Output Functions ............................................................................................ 325
14.7 Operations of Serial Input Functions .............................................................................................. 327
14.8 8-Bit Serial I/O Operation in Each Mode ......................................................................................... 329
14.9 Notes on Using 8-Bit Serial I/O ....................................................................................................... 333
14.10 Example of 8-Bit Serial I/O Connection .......................................................................................... 334
14.11 Program Example for 8-Bit Serial I/O ............................................................................................. 336
CHAPTER 15 BUZZER OUTPUT .................................................................................... 339
15.1 Overview of the Buzzer Output ....................................................................................................... 340
15.2 Configuration of the Buzzer Output ................................................................................................ 341
15.3 Pin of the Buzzer Output ................................................................................................................. 342
15.4 Buzzer Register (BZCR) ................................................................................................................. 343
15.5 Program Example for Buzzer Output .............................................................................................. 345
CHAPTER 16 WILD REGISTER FUNCTION .................................................................. 347
16.1 Overview of the Wild Register Function .......................................................................................... 348
16.2 Configuration of the Wild Register Function ................................................................................... 349
16.3 Registers of the Wild Register Function ......................................................................................... 350
16.3.1 Data Setting Registers (WRDR0 and WRDR1) ......................................................................... 351
16.3.2 Higher Address Set Registers (WRARH0 and WRARH1) ......................................................... 352
16.3.3 Lower Address Set Registers (WRARL0 and WRARL1) ........................................................... 353
16.3.4 Address Comparison EN Register (WREN) .............................................................................. 354
16.3.5 Data Test Set Register (WROR) ............................................................................................... 355
16.4 Operations of the Wild Register Functions ..................................................................................... 356