Samsung SP0401N Product Manual page 51

Drive Connector
Signal Name
DMARQ
Ground
IOW-
Ground
IOR-
Ground
IORDY
Reserved
DMACK-
Ground
INTRQ
IOCS16-
ADDR1
PDIAG- / CBLID-
ADDR0
ADDR2
CS1FX-
CS3FX-
DASP-
Ground
Drive 1
34
39
SpinPoint P80 Product Manual Rev. 01
Table 6-1 AT-Bus Interface Signals (continued)
Direction
Pin No.
21
22
23
23
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
* Drive Intercommunication Signals
 PDIAG →
 DASP- →
AT System BUS
→
DMARQ

Ground
←
IOW-

Ground
←
IOR-

Ground
→
IORDY
No Connection
←
DMACK-

Ground
→
INTRQ
→
IOCS16-
←
SA1
** PDIAG-
←
SA0
←
SA2
←
CS0-
←
CS1-
*→ DASP-

Ground
Drive 0

34 34
→
39 39
Host
34
39
43