内置SCSI卡接口(单端信号方式)

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：

连接电缆为 50 针母插头：

引脚定义

Pin	Name	Dir	Description
2	DB0		Data Bus 0
4	DB1		Data Bus 1
6	DB2		Data Bus 2
8	DB3		Data Bus 3
10	DB4		Data Bus 4
12	DB5		Data Bus 5
14	DB6		Data Bus 6
16	DB7		Data Bus 7
18	PARITY		Data Parity (odd Parity)
20	GND		Ground
22	GND		Ground
24	GND		Ground
26	TMPWR		Termination Power
28	GND		Ground
30	GND		Ground
32	/ATN		Attention
34	GND		Ground
36	/BSY		Busy
38	/ACK		Acknowledge
40	/RST		Reset
42	/MSG		Message
44	/SEL		Select
46	/C/D		Control/Data
48	/REQ		Request
50	/I/O		Input/Output

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