Little Board™/486e Technical Manual

Table 2–25. IDE Drive Interface Connector (J12)

Pin

Signal Name

Function

In/Out

 

 

 

 

1

-HOST RESET

Reset signal from host

OUT

2

GND

Ground

OUT

3

HOST D7

Data bit 7

I/O

4

HOST D8

Data bit 8

I/O

5

HOST D6

Data bit 6

I/O

6

HOST D9

Data bit 9

I/O

7

HOST D5

Data bit 5

I/O

8

HOST D10

Data bit 10

I/O

9

HOST D4

Data bit 4

I/O

10

HOST D11

Data bit 11

I/O

11

HOST D3

Data bit 3

I/O

12

HOST D12

Data bit 12

I/O

13

HOST D2

Data bit 2

I/O

14

HOST D13

Data bit 13

I/O

15

HOST D1

Data bit 1

I/O

16

HOST D14

Data bit 14

I/O

17

HOST D0

Data bit 0

I/O

18

HOST D15

Data bit 15

I/O

19

GND

Ground

OUT

20

KEY

Keyed pin

N/C

21

RSVD

Reserved

N/C

22

GND

Ground

OUT

23

-HOST IOW

Write strobe

OUT

24

GND

Ground

OUT

25

-HOST IOR

Read strobe

OUT

26

GND

Ground

OUT

27

RSVD

Reserved

N/C

28

RSV

Reserved

N/C

29

RSVD

Reserved

N/C

30

GND

Ground

OUT

31

HOST IRQ14

Drive interrupt request

IN

 

 

 

 

32

RSVD

Reserved

N/C

 

 

 

 

2–30

Page 46
Image 46
Ampro Corporation 486E manual IDE Drive Interface Connector J12