R5F212AC中文资料(8)

瑞萨R8c中文资料

11.2内部振荡器时钟.............................................................................................................................................. 13911.2.1低速内部振荡器时钟 ............................................................................................................................13911.2.2高速内部振荡器时钟 ............................................................................................................................13911.3XCIN时钟....................................................................................................................................................... 14011.4CPU时钟和外围功能时钟............................................................................................................................. 14111.4.1系统时钟 ................................................................................................................................................14111.4.2CPU时钟 ...............................................................................................................................................14111.4.3外围功能时钟（f1、f2、f4、f8、f32） .........................................................................................14111.4.4fOCO ......................................................................................................................................................14111.4.5fOCO40M ...............................................................................................................................................14111.4.6fOCO-F ...................................................................................................................................................14111.4.7fOCO-S ...................................................................................................................................................14211.4.8fOCO128 ................................................................................................................................................14211.4.9fC4、fC32 .............................................................................................................................................14211.5功率控制.......................................................................................................................................................... 14311.5.1标准运行模式 ........................................................................................................................................14311.5.2等待模式 ................................................................................................................................................14411.5.3停止模式 ................................................................................................................................................14811.6振荡停止检测功能.......................................................................................................................................... 15111.6.1振荡停止检测功能的使用方法 ............................................................................................................15111.7时钟产生电路的使用注意事项...................................................................................................................... 15411.7.1停止模式 ................................................................................................................................................15411.7.2等待模式 ................................................................................................................................................15411.7.3振荡停止检测功能 ................................................................................................................................15411.7.4振荡电路常数 ........................................................................................................................................15412.

保护 .....................................................................................................................................................................155

13.中断 .....................................................................................................................................................................15613.1中断概要.......................................................................................................................................................... 15613.1.1中断分类 ................................................................................................................................................15613.1.2软件中断 ................................................................................................................................................15713.1.3特殊中断 ................................................................................................................................................15813.1.4外围功能中断 ........................................................................................................................................15813.1.5中断和中断向量 ....................................................................................................................................15913.1.6中断控制 ................................................................................................................................................16113.2INT中断.......................................................................................................................................................... 16913.2.1INTi中断（i=0～3） ..........................................................................................................................16913.2.2INTi输入滤波器（i=0～3） ..............................................................................................................17113.3键输入中断...................................................................................................................................................... 17213.4地址匹配中断.................................................................................................................................................. 17413.5定时器RC中断、定时器RD中断、带片选的时钟同步串行I/O中断、I2C总线接口中断

（带有多个中断请求源的中断）.................................................................................................................... 17613.6中断的使用注意事项...................................................................................................................................... 17713.6.1地址00000h的读取 ..............................................................................................................................17713.6.2SP的设定 ..............................................................................................................................................17713.6.3外部中断和键输入中断 ........................................................................................................................17713.6.4中断源的更改 ........................................................................................................................................17813.6.5中断控制寄存器的更改 ........................................................................................................................17914.看门狗定时器 .....................................................................................................................................................18014.1计数源保护模式无效时.................................................................................................................................. 183

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