Datasheet

Table Of Contents
Rev. 2.00 Jul. 04, 2007 Page xxii of xl
22.3.7 I
2
C Bus Transmit Data Register (ICDRT) ............................................................ 494
22.3.8 I
2
C Bus Receive Data Register (ICDRR).............................................................. 494
22.3.9 I
2
C Bus Shift Register (ICDRS)............................................................................ 494
22.4 Operation ........................................................................................................................... 495
22.4.1 I
2
C Bus Format...................................................................................................... 495
22.4.2 Master Transmit Operation................................................................................... 496
22.4.3 Master Receive Operation .................................................................................... 498
22.4.4 Slave Transmit Operation ..................................................................................... 500
22.4.5 Slave Receive Operation....................................................................................... 503
22.4.6 Clock Synchronous Serial Format ........................................................................ 504
22.4.7 Noise Canceller..................................................................................................... 507
22.4.8 Example of Use..................................................................................................... 507
22.5 Interrupt Request................................................................................................................ 512
22.6 Bit Synchronous Circuit..................................................................................................... 513
22.7 Usage Notes ....................................................................................................................... 514
22.7.1 Note on Issuing Stop Condition and Start (Re-Transmit) Condition .................... 514
22.7.2 Note on Setting WAIT Bit in I
2
C Bus Mode Register (ICMR)............................. 514
22.7.3 Restriction on Transfer Rate Setting in Multimaster Operation ........................... 514
22.7.4 Restriction on the Use of Bit Manipulation Instructions for MST and
TRS Setting in Multimaster Operation ................................................................. 515
22.7.5 Usage Note on Master Receive Mode................................................................... 515
Section 23 Power-On Reset Circuit...................................................................517
23.1 Feature ............................................................................................................................... 517
23.2 Operation ........................................................................................................................... 518
23.2.1 Power-On Reset Circuit ........................................................................................ 518
Section 24 Address Break .................................................................................519
24.1 Register Descriptions......................................................................................................... 520
24.1.1 Address Break Control Register 2 (ABRKCR2) .................................................. 520
24.1.2 Address Break Status Register 2 (ABRKSR2) ..................................................... 522
24.1.3 Break Address Registers 2 (BAR2E, BAR2H, BAR2L) ...................................... 522
24.1.4 Break Data Registers 2 (BDR2H, BDR2L) .......................................................... 522
24.2 Operation ........................................................................................................................... 523
24.3 Operating States of Address Break .................................................................................... 524
Section 25 List of Registers............................................................................... 525
25.1 Register Addresses (Address Order).................................................................................. 526
25.2 Register Bits....................................................................................................................... 533
25.3 Register States in Each Operating Mode ........................................................................... 540