Datasheet

Table Of Contents
Page xxii of liv REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
Section 13 Serial Communication Interface................................................................. 381
13.1 Features............................................................................................................................. 381
13.1.1 Block Diagram.................................................................................................. 383
13.2 Input/Output Pins.............................................................................................................. 386
13.3 Register Descriptions........................................................................................................ 386
13.3.1 Receive Shift Register (RSR) ........................................................................... 387
13.3.2 Receive Data Register (RDR)........................................................................... 387
13.3.3 Transmit Data Register (TDR).......................................................................... 387
13.3.4 Transmit Shift Register (TSR).......................................................................... 387
13.3.5 Serial Mode Register (SMR) ............................................................................ 388
13.3.6 Serial Control Register (SCR) .......................................................................... 392
13.3.7 Serial Status Register (SSR) ............................................................................. 396
13.3.8 Smart Card Mode Register (SCMR)................................................................. 402
13.3.9 Serial Extended Mode Register (SEMR) (Only for Channel 0 in H8S/2215) .. 403
13.3.10 Serial Extended Mode Register A_0 (SEMRA_0)
(Only for Channel 0 in H8S/2215R, H8S/2215T and H8S/2215C).................. 411
13.3.11 Serial Extended Mode Register B_0 (SEMRB_0)
(Only for Channel 0 in H8S/2215R, H8S/2215T and H8S/2215C).................. 413
13.3.12 Bit Rate Register (BRR) ................................................................................... 415
13.4 Operation in Asynchronous Mode.................................................................................... 423
13.4.1 Data Transfer Format........................................................................................ 424
13.4.2 Receive Data Sampling Timing and Reception Margin in Asynchronous
Mode................................................................................................................. 425
13.4.3 Clock................................................................................................................. 426
13.4.4 SCI Initialization (Asynchronous Mode).......................................................... 427
13.4.5 Data Transmission (Asynchronous Mode)........................................................ 428
13.4.6 Serial Data Reception (Asynchronous Mode)................................................... 430
13.5 Multiprocessor Communication Function ........................................................................ 434
13.5.1 Multiprocessor Serial Data Transmission......................................................... 435
13.5.2 Multiprocessor Serial Data Reception .............................................................. 437
13.6 Operation in Clocked Synchronous Mode........................................................................ 440
13.6.1 Clock................................................................................................................. 440
13.6.2 SCI Initialization (Clocked Synchronous Mode).............................................. 441
13.6.3 Serial Data Transmission (Clocked Synchronous Mode) ................................. 441
13.6.4 Serial Data Reception (Clocked Synchronous Mode)....................................... 444
13.6.5 Simultaneous Serial Data Transmission and Reception
(Clocked Synchronous Mode) .......................................................................... 445
13.7 Operation in Smart Card Interface.................................................................................... 447
13.7.1 Pin Connection Example................................................................................... 447
13.7.2 Data Format (Except for Block Transfer Mode)............................................... 448