目录

2.3定时器....................................................................................................................................... 2-20

2.3.1存储器映射................................................................................................................. 2-20

2.3.2相关寄存器........................................................................................................ 2-20

2.3.3定时器应用实例............................................ ............................................ 2-27

计时器2.3.4注意事项.............................................................................................................. 2-39

2.4串行I / O ................................................................................................................................ 2-40

2.4.1存储器映射................................................................................................................. 2-40

2.4.2相关寄存器........................................................................................................ 2-41

2.4.3串行I / O连接的例子......................................... ........................................ 2-48

2.4.4设置串行I / O传输的数据格式...................................... ........................... 2-50

2.4.5串行I / O应用实例......................................... ........................................ 2-51

在串行I 2.4.6注意事项/ O ...................................................................................................... 2-71

2.5 PWM ........................................................................................................................................ 2-74

2.5.1存储器映射................................................................................................................. 2-74

2.5.2相关寄存器........................................................................................................ 2-74

2.5.3 PWM输出电路的应用实例.......................................... ......................... 2-76

在PWM 2.5.4注意事项............................................................................................................. 2-78

2.6 A- D转换器....................................................................................................................... 2-79

2.6.1存储器映射................................................................................................................. 2-79

2.6.2相关寄存器........................................................................................................ 2-79

AD转换器2.6.3应用实例........................................... ............................... 2-82

在AD转换器2.6.4注意事项........................................... .................................................. 。 2-84

2.7看门狗定时器.................................................................................................................... 2-85

2.7.1存储器映射................................................................................................................. 2-85

2.7.2相关寄存器........................................................................................................ 2-85

2.7.3看门狗定时器应用实例........................................... ............................ 2-87

在看门狗定时器2.7.4注意事项........................................... ................................................. 2 -88

2.8复位....................................................................................................................................... 2-89

2.8.1连接复位IC的例子.......................................... ...................................... 2-89

RESET引脚2.8.2注意事项........................................... .................................................. ...... 2-90

2.9时钟产生电路.............................................. .................................................. 2-91 ....

2.9.1相关寄存器........................................................................................................ 2-91

2.9.2时钟产生电路的应用实例.......................................... ................. 2-92

2.10待机功能............................................................................................................... 2-95

2.10.1相关寄存器...................................................................................................... 2-95

2.10.2停止模式................................................................................................................... 2-96

2.10.3等待模式................................................................................................................. 2-100

2.11闪存模式....................................................................................................... 2-103

2.11.1概述.................................................................................................................... 2-103

2.11.2存储器映射............................................................................................................. 2-103

2.11.3相关寄存器............................................. .................................................. ..... 2-104

2.11.4并行I / O模式..................................................................................................... 2-105

2.11.5标准串行I / O模式......................................... ............................................... 2-105

2.11.6 CPU改写模式............................................ .................................................. ..... 2-106

2.11.7闪存模式的应用实例.......................................... ................ 2-108

在CPU改写模式2.11.8说明.......................................... ........................................ 2-113

第3章附录

3.1电气特性..................................................................................................... 3-2

3.1.1绝对最大额定值............................................ ................................................ 3- 2

3.1.2推荐工作条件............................................ ................................ 3-3

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