Contec SPC-8520-LA - Primary IDE Connector: CNI1

3. Hardware Installations
20
SPC-8520-LA , SPC-8521-LA
Primary IDE Connector: CNI1
This product provides a bus-mastering PCI IDE interface. This interface support PIO Mode 3, PIO
Mode 4, ATAPI devices (e.g., CD-ROM drive), and Ultra DMA/33/66/100 synchronous-DMA mode
transfers. The BIOS supports logical block addressing (LBA) and extended cylinder head sector
(ECHS) translation modes. The BIOS automatically detects the IDE device transfer rate and translation
mode.
This connector supports the provided IDE hard disk ribbon cable. After connecting the single end to the
product, connect the two plugs at the other end to your hard disk(s). If you install two hard disks, you
must configure the second drive to Slave mode by setting its jumper accordingly. Please refer to your
hard disk documentation for the jumper setting.
Table 3.9. Primary IDE Connector
Pin No.
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
Function
RESET
D7
D6
D5
D4
D3
D2
D1
D0
GND
DREQ
IOW
IOR
IORDY
DACK
IRQ
A1
A0
CS0
HD ACT
Pin No.
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
Function
GND
D8
D9
D10
D11
D12
D13
D14
D15
N.C.
GND
GND
GND
ALE
GND
Reserved
Reserved
A2
CS1
GND
CNI1
1
2
39
40