11.4.4 Switching between Watchdog Timer Mode and Interval Timer Mode................ 232
11.4.5 Detection of Program Runaway ........................................................................... 232
Section 12 Serial Communication Interface ................................................................ 233
12.1 Overview............................................................................................................................ 233
12.1.1 Features ................................................................................................................ 233
12.1.2 Block Diagram...................................................................................................... 234
12.1.3 Input and Output Pins........................................................................................... 235
12.1.4 Register Configuration ......................................................................................... 236
12.2 Register Descriptions......................................................................................................... 237
12.2.1 Receive Shift Register (RSR)............................................................................... 237
12.2.2 Receive Data Register (RDR) .............................................................................. 237
12.2.3 Transmit Shift Register (TSR).............................................................................. 237
12.2.4 Transmit Data Register (TDR) ............................................................................. 238
12.2.5 Serial Mode Register (SMR)................................................................................ 238
12.2.6 Serial Control Register (SCR).............................................................................. 240
12.2.7 Serial Status Register (SSR)................................................................................. 243
12.2.8 Bit Rate Register (BRR)....................................................................................... 246
12.2.9 Serial/Timer Control Register (STCR) ................................................................ 256
12.3 Operation ........................................................................................................................... 257
12.3.1 Overview .............................................................................................................. 257
12.3.2 Asynchronous Mode ............................................................................................ 259
12.3.3 Synchronous Mode............................................................................................... 272
12.4 Interrupts............................................................................................................................ 278
12.5 Application Notes.............................................................................................................. 278
Section 13 I2C Bus Interface (H8/3337 Series Only) [Option].............................. 281
13.1 Overview............................................................................................................................ 281
13.1.1 Features ................................................................................................................ 281
13.1.2 Block Diagram...................................................................................................... 283
13.1.3 Input/Output Pins.................................................................................................. 284
13.1.4 Register Configuration ......................................................................................... 284
13.2 Register Descriptions......................................................................................................... 285
13.2.1 I2C Bus Data Register (ICDR).............................................................................. 285
13.2.2 Slave Address Register (SAR) ............................................................................. 285
13.2.3 I2C Bus Mode Register (ICMR) ........................................................................... 286
13.2.4 I2C Bus Control Register (ICCR) ......................................................................... 287
13.2.5 I2C Bus Status Register (ICSR)............................................................................ 290
13.2.6 Serial/Timer Control Register (STCR) ................................................................ 294
13.3 Operation ........................................................................................................................... 295
13.3.1 I2C Bus Data Format............................................................................................. 295
13.3.2 Master Transmit Operation .................................................................................. 296
13.3.3 Master Receive Operation.................................................................................... 298
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RENESAS [ RENESAS TECHNOLOGY CORP ]
