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DISK DRIVE OPERATION
SpinPoint V40 Product Manual
44
Table 6-1 AT-Bus Interface Signals (continued)
Drive Connector
Signal Name Pin No.
Direction AT System BUS
DMARQ 21 → DMARQ
Ground 22 Ground
IOW- 23 ← IOW-
Ground 23 Ground
IOR- 25 ← IOR-
Ground 26 Ground
IORDY 27 → IORDY
Reserved 28 No Connection
DMACK- 29 ← DMACK-
Ground 30 Ground
INTRQ 31 → INTRQ
IOCS16- 32 → IOCS16-
ADDR1 33 ← SA1
PDIAG- / CBLID- 34 ** PDIAG-
ADDR0 35 ← SA0
ADDR2 36 ← SA2
CS1FX- 37 ← CS0-
CS3FX- 38 ← CS1-
DASP- 39 *→ DASP-
Ground 40 Ground
* Drive Intercommunication Signals
Drive 1 Drive 0 Host
34 PDIAG → 34 34 34
39 DASP- → 39 39 → 39