17.3

17.4

17.5

17.6

17.2.1 A / D数据寄存器A至D （ ADDRA到ADDRD ） ................................. ............ 472

17.2.2 A / D控制/状态寄存器（ ADCSR ） ..................................... ........................... 473

17.2.3 A / D控制寄存器（ ADCR ） ....................................... ....................................... 476

17.2.4键盘比较器控制寄存器（ KBCOMP ） ........................................ ... 477

17.2.5模块停止控制寄存器（ MSTPCR ） ........................................ ................... 478

接口总线主...................................................................................................... 479

手术............................................................................................................................ 480

17.4.1单模式（ SCAN = 0 ） ........................................ .............................................. 480

17.4.2扫描模式（ SCAN = 1 ） ........................................ ................................................ 482

17.4.3输入采样和A / D转换时间....................................... ................... 484

17.4.4外部触发输入时序........................................... ................................... 485

中断............................................................................................................................ 485

用法Notes........................................................................................................................ 486

第18 RAM

.................................................................................................................... 493

18.1概述............................................................................................................................ 493

18.1.1框图...................................................................................................... 493

18.1.2寄存器配置............................................. ............................................. 494

18.2系统控制寄存器（ SYSCR ） ........................................... ......................................... 494

18.3操作............................................................................................................................ 495

18.3.1扩展模式（模式1 ，图2及图3（ EXPE = 1） ） ......................... ................. 495

18.3.2单芯片模式（模式2和模式3（ EXPE = 0） ） ................................ .................. 495

第19 ROM

.................................................................................................................... 497

19.1概述............................................................................................................................ 497

19.1.1框图...................................................................................................... 497

19.1.2寄存器配置............................................. ............................................. 498

19.2注册Descriptions.......................................................................................................... 498

19.2.1模式控制寄存器（ MDCR ） ......................................... ................................. 498

19.3操作............................................................................................................................ 499

对Flash 19.4概述Memory................................................................................................ 500

19.4.1特点................................................................................................................. 500

19.4.2框图...................................................................................................... 501

19.4.3 Flash存储器的工作模式........................................... ............................... 502

19.4.4引脚配置............................................. .................................................. ... 506

19.4.5寄存器配置............................................. ............................................. 506

19.5注册Descriptions.......................................................................................................... 507

19.5.1闪存控制寄存器1 （ FLMCR1 ） ....................................... ............... 507

19.5.2闪存控制寄存器2 （ FLMCR2 ） ....................................... ............... 509

19.5.3擦除块寄存器1和2 （ EBR1 ， EBR2 ） .................................... .................. 510

19.5.4串行/定时器控制寄存器（ STCR ） ....................................... .......................... 511

19.6板载编程模式............................................ ............................................. 513

19.6.1启动Mode............................................................................................................. 513

xi