内置SCSI卡接口界说图(单端信号方法)
SCSI 是 Small Computer System Interface 的缩写,在控制器和设备侧的接口外观为 50 针公插座:
衔接电缆为 50 针母插头:
引脚界说 |
Pin | Name | Dir | DescripTIon |
---|---|---|---|
2 |
DB0 |
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Data Bus 1 |
6 |
DB2 |
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Data Bus 3 |
10 |
DB4 |
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Data Bus 5 |
14 |
DB6 |
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Data Bus 7 |
18 |
PARITY |
Ground |
|
22 |
GND |
Ground |
|
24 |
GND |
Ground |
|
26 |
TMPWR |
Ground |
|
30 |
GND |
Ground |
|
32 |
/ATN |
AttenTIon |
|
34 |
GND |
Ground |
|
36 |
/BSY |
Acknowledge |
|
40 |
/RST |
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Message |
44 |
/SEL |
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Control/Data |
48 |
/REQ |
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Input/Output |