A - 13
2
C-bus Interface ................................................................................. 534
Peripheral Clock Select Register (PCLKR) ..................................................................... 538
I2C0 Data Shift Register (S00) ........................................................................................ 539
I2C0 Address Register i (S0Di) (i = 0 to 2) ...................................................................... 540
I2C0 Control Register 0 (S1D0) ....................................................................................... 541
I2C0 Clock Control Register (S20) .................................................................................. 543
I2C0 Start/Stop Condition Control Register (S2D0) ......................................................... 545
I2C0 Control Register 1 (S3D0) ....................................................................................... 546
I2C0 Control Register 2 (S4D0) ....................................................................................... 550
I2C0 Status Register 0 (S10) ........................................................................................... 552
I2C0 Status Register 1 (S11) ........................................................................................... 557
Clock ................................................................................................................................ 558
Generating a Start Condition ........................................................................................... 561
Generating a Stop Condition ........................................................................................... 563
Generating a Restart Condition ....................................................................................... 564
Start Condition Overlap Protect ....................................................................................... 565
Arbitration Lost ................................................................................................................ 567
Detecting Start/Stop Conditions ....................................................................................... 569
Operation after Transmitting/Receiving a Slave Address or Data ................................... 571
Timeout Detection ........................................................................................................... 572
Data Transmit/Receive Examples ................................................................................... 573
25.5
Notes on Multi-master I
2
C-bus Interface .................................................................................. 581
25.5.1
Limitation on CPU Clock .................................................................................................. 581
25.5.2
Register Access ............................................................................................................... 581
25.5.3
Low/High-level Input Voltage and Low-level Output Voltage ........................................... 581
CEC Function Control Register 1 (CECC1) ..................................................................... 585
CEC Function Control Register 2 (CECC2) ..................................................................... 586
CEC Function Control Register 3 (CECC3) ..................................................................... 588
CEC Function Control Register 4 (CECC4) ..................................................................... 590
CEC Flag Register (CECFLG) ......................................................................................... 592
CEC Interrupt Source Select Register (CISEL) ............................................................... 593
CEC Transmit Buffer Register 1 (CCTB1) ....................................................................... 594
CEC Transmit Buffer Register 2 (CCTB2) ....................................................................... 594
Содержание M16C Series
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