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:

50 PIN IDC MALE

连接电缆为 50 针母插头:

50 PIN IDC FEMALE

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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