增强的超级I / O控制器， LPC接口

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目录

1

2

3

3.1

3.2

4

5

6

7

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

一般Description..............................................................................................................................................7

PIN CONFIGURATION...........................................................................................................................................8

描述销FUNCTIONS.....................................................................................................................9

缓存类型Descriptions................................................................................................................................13

需要外部上拉引脚Resistors................................................................................................13

框图...............................................................................................................................................14

参考DOCUMENTS................................................................................................................................15

3伏操作/ 5 VOLT公差....................................................................................................16

电源FUNCTIONALITY...................................................................................................................................17

VCC电源.......................................................................................................................................................17

VTR支持....................................................................................................................................................17

内部PWRGOOD .........................................................................................................................................17

32.768 kHz的时钟滴流输入.......................................................................................................................17

32kHz的时钟指示...............................................................................................................................17

涓流电源Functionality............................................................................................................................18

VREF引脚..........................................................................................................................................................19

最大电流值...............................................................................................................................19

7.9

电源管理事件（ PME / SCI ） ..........................................................................................................19

8功能.............................................................................................................................20

8.1

8.2

8.3

8.3.1

8.3.2

8.3.3

超级I / O寄存器.........................................................................................................................................20

主处理器接口（ LPC ） .....................................................................................................................20

LPC INTERFACE..............................................................................................................................................20

LPC接口信号Definition.........................................................................................................................................20

LPC周期.......................................................................................................................................................................21

字段定义................................................................................................................................................................21

8.4

8.4.1

8.4.2

8.4.3

8.4.4

8.4.5

动力Management.........................................................................................................................................22

CLOCKRUN协议.......................................................................................................................................................22

典型用法...................................................................................................................................................................22

SYNC Timeout..................................................................................................................................................................22

同步模式和最大数量SYNCS...........................................................................................................22

同步错误指示......................................................................................................................................................22

8.5

8.5.1

LPC传输序列的例子................................................................................................................24

等待状态Requirements..................................................................................................................................................24

9

9.1

10

11

12

13

14

15

15.1

15.2

16

17

软盘控制器............................................................................................................................25

FDC内部Registers....................................................................................................................................25

命令集/说明...................................................................................................................41

指令集..........................................................................................................................................44

串口（ UART ） .....................................................................................................................................62

串行Data........................................................................................................................................................66

红外接口..................................................................................................................................75

MPU- 401 MIDI UART........................................................................................................................................76

Overview.......................................................................................................................................................76

主持人Interface...............................................................................................................................................76

状态端口.......................................................................................................................................................78

位[ 5：0] ............................................................................................................................................................79

第4页

牧师07年2月16日

ADDRESS.........................................................................................................................................................................................77

SMSC DS - LPC47M112

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