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Reset
–
Ground
DD7
DD8
DD6
DD9
DD5
DD10
DD4
DD11
DD3
DD12
DD2
DD13
DD1
DD14
DD0
DD15
Ground
(removed)
DMARQ
Ground
DIOW
–
Ground
DIOR
–
Ground
IORDY
CSEL
DMACK
–
Ground
INTRQ
IOCS16
–
DA1
PDIAG
–
DA0
DA2
CS1FX
–
CS3FX
–
DASP
–
Ground
*
Drive-to-drive signals
Host
28
34
39
Drive 0
(master)
Drive 1
(slave)
28
34
39
28
34
39
CSEL
PDIAG
–
DASP–
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Host Reset
Ground
Host Data Bus Bit 7
Host Data Bus Bit 8
Host Data Bus Bit 6
Host Data Bus Bit 9
Host Data Bus Bit 5
Host Data Bus Bit 10
Host Data Bus Bit 4
Host Data Bus Bit 11
Host Data Bus Bit 3
Host Data Bus Bit 12
Host Data Bus Bit 2
Host Data Bus Bit 13
Host Data Bus Bit 1
Host Data Bus Bit 14
Host Data Bus Bit 0
Host Data Bus Bit 15
Ground
(No Pin)
DMA Request
Ground
Host I/O Write
Ground
Host I/O Read
Ground
I/O Channel Ready
Cable Select
DMA Acknowledge
Ground
Host Interrupt Request
Host 16 Bit I/O
Host Address Bus Bit 1
Passed Diagnostics
Host Address Bus Bit 0
Host Address Bus Bit 2
Host Chip Select 0
Host Chip Select 1
Drive Active/
Drive 1 Present
Ground
Host
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
*34
35
36
37
38
*39
40
Drive
NC
Figure 7. ATA interface connector pin assignments
26 Medalist Pro 6450/6451 Product Manual, Rev. B