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CHAPTER 2 –Hardware Installations
SPI-8450-LLVA
15
2.8 IDE Connector: CN7/ CN8
CN7: Primary IDE Connector
CN8: Secondary IDE Connector
The CPU card SPI-8450-LLVA provides a bus-mastering PCI IDE interfaces. These
interfaces support PIO Mode 3, PIO Mode 4, ATAPI devices (e.g., CD-ROM), 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.
These connectors support the provided IDE hard disk ribbon cable. After connecting
the single end to the board, 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.
PIN No. Function PIN No. Function
1 RESET 2 GND
3 D7 4 D8
5 D6 6 D9
7 D5 8 D10
9 D4 10 D11
11 D3 12 D12
13 D2 14 D13
15 D1 16 D14
17 D0 18 D15
19 GND 20 N.C
21 DREQ 22 GND
23 IOW 24 GND
25 IOR 26 GND
27 IORDY 28 ALE
29 DACK 30 GND
31 IRQ 32 N.C.
33 A1 34 PDIAG
35 A0 36 A2
37 CS0 38 CS1
CN7/CN8
1 2
39 40
39 HD ACT 40 GND