R4F2189R datasheet(21/812 Pages) RENESAS

21 / 812 page

Rev. 2.00 Aug. 03, 2005 Page xxi of xlii

14.4.2 Receive Data Sampling Timing and Reception Margin in Asynchronous

Mode ..................................................................................................................... 417

14.4.3 Clock..................................................................................................................... 418

14.4.4 SCI Initialization (Asynchronous Mode) .............................................................. 419

14.4.5 Serial Data Transmission (Asynchronous Mode) ................................................. 420

14.4.6 Serial Data Reception (Asynchronous Mode)....................................................... 422

14.5

Multiprocessor Communication Function.......................................................................... 426

14.5.1 Multiprocessor Serial Data Transmission ............................................................. 427

14.5.2 Multiprocessor Serial Data Reception .................................................................. 429

14.6

Operation in Clocked Synchronous Mode ......................................................................... 432

14.6.1 Clock..................................................................................................................... 432

14.6.2 SCI Initialization (Clocked Synchronous Mode) .................................................. 433

14.6.3 Serial Data Transmission (Clocked Synchronous Mode) ..................................... 434

14.6.4 Serial Data Reception (Clocked Synchronous Mode)........................................... 437

14.6.5 Simultaneous Serial Data Transmission and Reception

(Clocked Synchronous Mode) .............................................................................. 439

14.7

Smart Card Interface Description....................................................................................... 441

14.7.1 Sample Connection ............................................................................................... 441

14.7.2 Data Format (Except in Block Transfer Mode) .................................................... 442

14.7.3 Block Transfer Mode ............................................................................................ 443

14.7.4 Receive Data Sampling Timing and Reception Margin........................................ 444

14.7.5 Initialization .......................................................................................................... 445

14.7.6 Serial Data Transmission (Except in Block Transfer Mode) ................................ 446

14.7.7 Serial Data Reception (Except in Block Transfer Mode) ..................................... 449

14.7.8 Clock Output Control............................................................................................ 451

14.8

IrDA Operation ..................................................................................................................453

14.9

Interrupt Sources................................................................................................................ 456

14.9.1 Interrupts in Normal Serial Communication Interface Mode ............................... 456

14.9.2 Interrupts in Smart Card Interface Mode .............................................................. 457

14.10 Usage Notes ....................................................................................................................... 458

14.10.1 Module Stop Mode Setting ................................................................................... 458

14.10.2 Break Detection and Processing ........................................................................... 458

14.10.3 Mark State and Break Sending.............................................................................. 458

14.10.4 Receive Error Flags and Transmit Operations

(Clocked Synchronous Mode Only) ..................................................................... 458

14.10.5 Relation between Writing to TDR and TDRE Flag .............................................. 458

14.10.6 SCI Operations during Mode Transitions ............................................................. 459

14.10.7 Notes on Switching from SCK Pins to Port Pins .................................................. 462

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