Seagate ST32122A - Medalist 2.1 GB Hard Drive, Product Manual

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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-:
STOP
Ground
DIOR-:
HDMARDY:
HSTROBE
Ground
IORDY:
DDMARDY-:
DSTROBE
CSEL
DMACK–
Ground
INTRQ
IOCS16–
DA1
PDIAG–
DA0
DA2
CS0–
CS1–
DASP–
Ground
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
Hardware 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
Device Data (15:0)
Ground
(No Pin)
DMA Request
Ground
Device I/O Write:
Stop Ultra DMA Burst
Ground
Device I/O Read:
Host Ultra DMA Ready:
Host Ultra DMA Data Strobe
Ground
I/O Channel Ready
Device Ultra DMA Ready
Device Ulta DMA Data Strobe
Cable Select
DMA Acknowledge
Ground
Device Interrupt
Host 16 Bit I/O
Host Address Bus Bit 1
Passed Diagnostics
Device Address (2:0)
Device Address (2:0)
Chip Select (1:0)
Chip Select (1:0)
Drive Active / Slave Present
Ground
Host pin # and signal description
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 pin # Signal name
Pins 28, 34 and 39 are used for master-slave communication (details shown below).
Host
28
34
39
Drive 0 (master) Drive 1 (slave)
28
34
39 28
34
39 CSEL
PDIAG–
DASP–
Figure 5. I/O pins and supported ATA signals
22 Medalist 4342, 3232, 2122, 1722 and 1012 Product Manual