Datasheet

Rev. 4.00 Jun 06, 2006 page xxvii of liv
16.1.3 Input/Output Pins................................................................................................. 458
16.1.4 Register Configuration......................................................................................... 459
16.2 Register Descriptions........................................................................................................ 460
16.2.1 I
2
C Bus Data Register (ICDR) ............................................................................. 460
16.2.2 Slave Address Register (SAR)............................................................................. 463
16.2.3 Second Slave Address Register (SARX) ............................................................. 464
16.2.4 I
2
C Bus Mode Register (ICMR)........................................................................... 465
16.2.5 I
2
C Bus Control Register (ICCR)......................................................................... 468
16.2.6 I
2
C Bus Status Register (ICSR)............................................................................ 475
16.2.7 Serial Timer Control Register (STCR) ................................................................ 480
16.2.8 DDC Switch Register (DDCSWR)...................................................................... 481
16.2.9 Module Stop Control Register (MSTPCR).......................................................... 484
16.3 Operation .......................................................................................................................... 485
16.3.1 I
2
C Bus Data Format ............................................................................................ 485
16.3.2 Master Transmit Operation.................................................................................. 487
16.3.3 Master Receive Operation.................................................................................... 489
16.3.4 Slave Receive Operation...................................................................................... 492
16.3.5 Slave Transmit Operation .................................................................................... 495
16.3.6 IRIC Setting Timing and SCL Control ................................................................ 496
16.3.7 Automatic Switching from Formatless Mode to I
2
C Bus Format ........................ 498
16.3.8 Operation Using the DTC.................................................................................... 499
16.3.9 Noise Canceler..................................................................................................... 500
16.3.10 Sample Flowcharts............................................................................................... 500
16.3.11 Initialization of Internal State .............................................................................. 505
16.4 Usage Notes ...................................................................................................................... 506
Section 17 Host Interface [H8S/2138 Group]............................................................. 523
17.1 Overview........................................................................................................................... 523
17.1.1 Features................................................................................................................ 523
17.1.2 Block Diagram..................................................................................................... 524
17.1.3 Input and Output Pins .......................................................................................... 525
17.1.4 Register Configuration......................................................................................... 526
17.2 Register Descriptions........................................................................................................ 527
17.2.1 System Control Register (SYSCR)...................................................................... 527
17.2.2 System Control Register 2 (SYSCR2)................................................................. 528
17.2.3 Host Interface Control Register (HICR) .............................................................. 529
17.2.4 Input Data Register 1 (IDR1)............................................................................... 530
17.2.5 Output Data Register 1 (ODR1)........................................................................... 530
17.2.6 Status Register 1 (STR1) ..................................................................................... 531
17.2.7 Input Data Register 2 (IDR2)............................................................................... 532
17.2.8 Output Data Register 2 (ODR2)........................................................................... 533