I/O Subsystems

 

Intel® Server Board Set SE8500HW4

 

 

 

 

 

 

Device

APIC

INTA#

INTB#

INTC#

INTD#

 

 

 

 

 

 

LSI Logic*

Intel IOP332 Storage I/O

PX1A_XINT0_N

PX1A_XINT1_N

-

-

53C1030

Processor (A)

 

 

 

 

Intel® Fibre

Intel IOP332 Storage I/O

PX1A_XINT2_N

PX1A_XINT3_N

-

-

Channel

Processor (A)

 

 

 

 

Module

 

 

 

 

 

 

 

 

 

 

 

3.1.2PCI IDSEL Signal

The IDSEL signal is used as a chip-select for devices during read and write transactions. The PXH and Intel® IOP332 Storage I/O Processor assert a specific address bit on a given PCI bus to toggle the IDSEL signal to the PCI device. For the Intel® Server Board Set SE8500HW4 Mainboard the address bit to IDSEL mapping is shown in Table 5.

Table 5. IDSEL Mapping

Device

Device #

IDSEL

Host Bridge

Broadcom* BCM5704

2

PX2B_AD<18>

PXH (B)

 

 

 

 

Slot 2

2

PX2A_AD<18>

PXH (A)

 

 

 

 

Slot 6

6

PX1B_AD<22>

Intel® IOP332 Storage I/O

 

 

 

Processor (B)

 

 

 

 

Slot 7

7

PX1B_AD<23>

Intel IOP332 Storage I/O

 

 

 

Processor (B)

LSI Logic* 53C1030

5

PX1A_AD<21>

Intel IOP332 Storage I/O

 

 

 

Processor (A)

 

 

 

 

Intel® Fibre Channel Module

15

PX1A_AD<31>

Intel IOP332 Storage I/O

 

 

 

Processor (A)

 

 

 

 

ROMB enabled on Intel IOP332

14

n/a

Internal to Intel IOP332

Storage I/O Processor

 

 

Storage I/O Processor

 

 

 

 

Note: When the ROMB solution is enabled, the IDSEL to the LSI Logic 53C1030 is inhibited by the Intel® IOP332 Storage I/O Processor. This effectively hides the SCSI controller from the system and the Intel® IOP332 Storage I/O Processor acts as the SCSI (or RAID) controller. Since the Intel® Fibre Channel Module is attached to the same bus as the SCSI controller, the Intel® Fibre Channel Module is set to device 15 so that it is not affected by the device hiding operation required for the ROMB solution.

12

Revision 1.0

 

Intel order number D22893-001