9
Pin Signal Assignment
The signals assigned for 44/40-pin applications are described in Table 1
Table 1 – Signal assignments for 44-pin ATA
Signal name Connector
contact
Conductor
Connector
contact
Signal name
RESET-
1
1
2
2
Ground
DD7
3
3
4
4
DD8
DD6
5
5
6
6
DD9
DD5
7
7
8
8
DD10
DD4
9
9
10
10
DD11
DD3
11
11
12
12
DD12
DD2
13
13
14
14
DD13
DD1
15
15
16
16
DD14
DD0
17
17
18
18
DD15
Ground
19
19
20
20
(keypin) or Vcc
DMARQ
21
21
22
22
Ground
DIOW-
23
23
24
24
Ground
DIOR-
25
25
26
26
Ground
IORDY
27
27
28
28
CSEL
DMACK-
29
29
30
30
Ground
INTRQ
31
31
32
32
reserved
DA1
33
33
34
34
PDIAG-
DA0
35
35
36
36
DA2
CS0-
37
37
38
38
CS1-
DASP-
39
39
40
40
Ground
+5 V (logic)
(see note)
41
41
42
42
+5 V (Motor)
(see note)
Ground(return)
(see note)
43
43
44
44
TYPE- (0=ATA)
(see note)
NOTE – Pins which are additional to those of the 40-pin cable.
