Ide Connectors; Scsi Subsystem; Ide Interface Pin Assignments - NEC POWERMATE PROFESSIONAL 9000 Service Manual

A-10 Connector Pin Assignments

IDE Connectors

The following table lists the pin assignments for IDE connectors. The signals in parentheses
are for the secondary connector.
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39

SCSI Subsystem

The onboard SCSI subsystem features the Adaptec AIC-7895CP component, which
contains a dual-channel SCSI controller and a PCI bus master interface. The AIC-7895CP
supports the following connectors (see Table A-12 through Table A-14).
T
One Narrow 50-pin connector
T
Two Wide 68-pin connectors
T
RAIDport connector interface
Table A-11 IDE Interface Pin Assignments
Signal Name
Reset IDE
Host Data 7
Host Data 6
Host Data 5
Host Data 4
Host Data 3
Host Data 2
Host Data 1
Host Data 0
Ground
DRQ0 (DRQ1)
I/O Write-
I/O Read-
IOCHRDY
DDACK0 (DDACK1)
IRQ14 (1RQ15)
Addr 1
Addr 0
Chip Select 0-
Activity
Pin Signal Name
2 Ground
4 Host Data 8
6 Host Data 9
8 Host Data 10
10 Host Data 11
12 Host Data 12
14 Host Data 13
16 Host Data 14
18 Host Data 15
20 Key
22 Ground
24 Ground
26 Ground
28 BALE
30 Ground
32 Vcc Pull-up
34 No Connection
36 Addr 2
38 Chip Select 3P (3S)
40 Ground