笔记本EC芯片逻辑介绍_ec控制键盘的硬件是什么

ec芯片

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EC Logic

第一部分 EC 相关介绍...................................................................................................................3

一、 W83L951DG 模块图..............................................................................................................3

二、 W83L951DG 模块介绍..........................................................................................................4

三、 W83L951DG GPIO PIN DEFINITION：...................................................................................4

第二部分 W83L951DG 功能与逻辑管理......................................................................................10

一、 开关机管理:..........................................................................................................................10

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功能介绍：

.......................................................................................................................10

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逻辑整理：

.......................................................................................................................11

(1) Battery 模式上电、掉电、SxandResume 时序............................................................................11

(2) ACAdapter 模式上电、掉电、SxandResume 时序.....................................................................13

(3) PowerFail..........................................................................................................................................15

(4) 触发电源状态变化事件...................................................................................................................15

二、 电池管理:..............................................................................................................................17

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功能介绍：

.......................................................................................................................17

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逻辑整理：

.......................................................................................................................17

(1) AC、电池状态监视..........................................................................................................................17

(2) 电池信息读取（循环检测）...........................................................................................................17

(3) 电池充电..........................................................................................................................................18

(4) 电池放电..........................................................................................................................................21

(5) 电池校正（DOS、OS）...................................................................................................................21

(6) Beep(PWM).......................................................................................................................................22

(7) 电池保护：预充、衡流、衡压、过充、过温、过压、过流、过放...........................................23

三、 THERMAL...............................................................................................................................25

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功能介绍：

.......................................................................................................................25

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逻辑整理：

.......................................................................................................................25

(1) ThermalSensorF75393S..................................................................................................................25

(2) 北桥过温检测（NS）......................................................................................................................25

(3) 动态风扇控制..................................................................................................................................26

(4) Throttling、ShutDown、OVP、OTP................................................................................................26

四、 Q 事件与 PS/2:......................................................................................................................28

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功能介绍：

.......................................................................................................................28

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逻辑整理：

.......................................................................................................................28

(1) 键盘扫描：......................................................................................................................................28

(2) Fn 功能键、WindowsMediaPlayerButton.....................................................................................29

(3) PS/2Touchpad...................................................................................................................................30

(4) 多国语言键盘..................................................................................................................................31

五、 指示灯与错误处理...............................................................................................................32

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功能介绍：

.......................................................................................................................32

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逻辑整理：

.......................................................................................................................32

(1) LED 灯的管理...................................................................................................................................32

(2) LED 灯的触发...................................................................................................................................32

六、 EC 刷写功能.........................................................................................................................34

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功能介绍

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逻辑整理

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七、 其它.......................................................................................................................................35

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功能介绍

...........................................................................................................................35

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逻辑整理：

.......................................................................................................................35

(1) PCB 版本号.......................................................................................................................................35

(2) 摄像头控制：..................................................................................................................................36

(3) APP 相关:..........................................................................................................................................36

八、 备注.......................................................................................................................................37