3.2

处理器寄存器.................................................................................................................. 68

3.2.1

3.2.2

3.2.3

控制寄存器.............................................................................................................................68

通用寄存器..............................................................................................................72

特殊功能寄存器(SFRs).................................................................................................73

相对寻址........................................................................................................................78

立即寻址....................................................................................................................79

表间接寻址...............................................................................................................80

注册addressing........................................................................................................................80

隐含地址.........................................................................................................................81

注册addressing........................................................................................................................82

直接addressing............................................................................................................................83

短直addressing...................................................................................................................84

特殊功能寄存器（ SFR ）地址........................................... ......................................... 85

寄存器间接寻址...........................................................................................................86

基于addressing...........................................................................................................................87

基于变址寻址.............................................................................................................88

堆栈寻址............................................................................................................................89

3.3

指令地址寻址............................................... ............................................... 78

3.3.1

3.3.2

3.3.3

3.3.4

3.4

操作数地址寻址............................................... .................................................. 81

3.4.1

3.4.2

3.4.3

3.4.4

3.4.5

3.4.6

3.4.7

3.4.8

3.4.9

第四章端口FUNCTIONS........................................................................................................... 90

4.1端口Functions............................................................................................................................ 90

4.2端口配置..................................................................................................................... 92

4.2.1

4.2.2

4.2.3

4.2.4

4.2.5

4.2.6

4.2.7

4.2.8

4.2.9

端口0..............................................................................................................................................93

端口1..............................................................................................................................................97

端口2............................................................................................................................................102

端口3............................................................................................................................................103

端口4............................................................................................................................................105

端口5............................................................................................................................................106

端口6............................................................................................................................................107

端口7............................................................................................................................................108

端口12..........................................................................................................................................109

4.2.10端口13..........................................................................................................................................110

4.2.11端口14..........................................................................................................................................111

4.3

4.4

寄存器控制端口功能.............................................. ........................................ 112

端口功能Operations........................................................................................................ 116

4.4.1

4.4.2

4.4.3

写入I / O端口.........................................................................................................................116

从我读/ O端口...................................................................................................................116

在我操作/ O端口..................................................................................................................116

第五章时钟发生器.............................................. .................................................. 117 ....

5.1

5.2

5.3

5.4

时钟发生器的功能.............................................. .................................................. 117

配置时钟发生器的.............................................. ............................................ 117

寄存器控制时钟发生器的.............................................. ................................... 119

系统时钟Oscillator.......................................................................................................... 126

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