第14节我

2

C总线接口（ IIC ）选项........................................... .............. 467

14.1 Features............................................................................................................................. 468

14.2输入/输出引脚.............................................................................................................. 470

14.3说明Registers.................................................................................................... 471

14.3.1 I

2

C总线数据寄存器（ ICDR ） ........................................... .................................. 471

14.3.2从机地址寄存器（ SAR） ........................................ ..................................... 472

14.3.3第二个从机地址寄存器（扎尔克斯） ....................................... ...................... 473

14.3.4 I

2

C总线模式寄存器（ ICMR ） ........................................... ................................ 474

14.3.5 I

2

C总线控制寄存器（ ICCR ） ........................................... .............................. 477

14.3.6 I

2

C总线状态寄存器（ ICSR ） ........................................... ................................. 486

14.3.7串行控制寄存器X（ SCRX ） ........................................ ............................... 490

14.3.8 ICDRE标志（内部标志） ......................................... ........................................ 492

14.4操作.......................................................................................................................... 493

14.4.1 I

2

C总线数据格式.............................................. ............................................. 493

14.4.2初始化......................................................................................................... 495

14.4.3操作在主发送........................................... .......................... 496

14.4.4操作在主接收........................................... ................................ 501

14.4.5操作中从接收........................................... .................................. 509

14.4.6操作中从发送........................................... ............................. 518

14.4.7时序设置IRIC和SCL的控制...................................... ........... 521

14.4.8 DTC操作............................................. .................................................. ..... 524

14.4.9噪声Canceller.................................................................................................... 526

内部状态14.4.10初始化........................................... ................................... 526

14.5使用注意事项...................................................................................................................... 528

14.5.1设置模块停止模式........................................... ....................................... 539

第15节A / D转换器............................................ ..................................... 541

15.1 Features............................................................................................................................. 541

15.2输入/输出引脚.............................................................................................................. 543

15.3寄存器描述........................................................................................................ 544

15.3.1 A / D数据寄存器0到7 （ ADDR0到ADDR7 ） ................................. ............... 544

15.3.2 A / D控制/状态Register_0 ， 1 （ ADCSR_0 ， ADCSR_1 ） ................................ 545

15.3.3 A / D控制Register_0 ， 1 （ ADCR_0 ， ADCR_1 ） ................................... ............. 547

15.3.4 A / D触发选择寄存器（ ADTSR ） ..................................... .......................... 548

15.4操作.......................................................................................................................... 549

15.4.1单Mode......................................................................................................... 549

15.4.2连续扫描模式............................................ ............................................ 549

15.4.3单周期扫描模式.......................................... ............................................ 550

15.4.4输入信号的采样和A / D转换时间...................................... ........ 550

15.4.5 A / D转换器被激活MTU ........................................ ............................. 552

Rev.4.00 2008年3月27日第四十四页的十八

REJ09B0108-0400