Pin assignment of internal ports

ATA interface

2

1

Pin

Signal

Pin

Signal

1

Reset drive (low asserted)

2

GND

3

Data 7 (high asserted)

4

Data 8 (high asserted)

5

Data 6 (high asserted)

6

Data 9 (high asserted)

7

Data 5 (high asserted)

8

Data 10 (high asserted)

9

Data 4 (high asserted)

10

Data 11 (high asserted)

11

Data 3 (high asserted)

12

Data 12 (high asserted)

13

Data 2 (high asserted)

14

Data 13 (high asserted)

15

Data 1 (high asserted)

16

Data 14 (high asserted)

17

Data 0 (high asserted)

18

Data 15 (high asserted)

19

GND

20

Key

21

DRQ (high asserted)

22

GND

23

I/O write (low asserted)

24

GND

25

I/O read (low asserted)

26

GND

27

I/O ready (low asserted)

28

Cable select

29

DAK (low asserted)

30

GND

31

IRQ (high asserted)

32

not connected

33

ADR 1 (high asserted)

34

ATA66 Detect (low asserted)

35

ADR 0 (high asserted)

36

ADR 2 (high asserted)

37

CS 1 (low asserted)

38

CS 3 (low asserted)

39

IDE-LED (low asserted)

40

GND

Audio S/PDIF

1

 

Pin

1

2

3

Signal

VCC

SPDIF out

GND

14 - English

A26361-D1931-Z120-1-7419, Edition 1

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Fujitsu D1931 technical manual ATA interface, Audio S/PDIF