苹果机鼠标接口定义

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苹果机鼠标接口外观为 9 针母插座：

9 PIN D-SUB FEMALE

鼠标线的插头外观为 9 针公插头：

9 PIN D-SUB MALE

引脚定义

　

Pin Name Dir Description
1 CGND --- Chassis ground
2 +5V --> +5 VDC
3 CGND --- Chassis ground
4 X2 <-- Horizontal movement line (connected to VIA PB4 line)
5 X1 <-- Horizontal movement line (connected to SCC DCDA-line)
6 n/c - Not connected
7 SW- <-- Mouse button line (connected to VIA PB3)
8 Y2 <-- Vertical movement line (connected to VIA PB5 line)
9 Y1 <-- Vertical movement line (connected to SCC DCDB-line)