Computer Hardware User Manual

50
2 V7865 Product Manual
PCI Device Interrupt Map
The PCI bus-based external devices include the PMC sites, Ethernet controller and the
PCI-to-VME bridge. The default BIOS maps these external devices to the PCI
Interrupt Request (PIRQx) lines of the ICH2. This mapping is illustrated in Figure 2-1
on page 51 and is defined in Table 2-5.
The device PCI interrupt lines (INTA through INTD) that are present on each device
cannot be modified.
Table 2-5 PCI Device Interrupt Mapping by the BIOS
Device Component
Vendor
ID
Device
ID
CPU
Address
Map ID
Select
PCI IRQ
Arbitration
Request
Line
PCI-to-VME Bridge Tundra Tsi148 0x10E3 0x0148 AD16 INTA REQ0
Timer/SRAM FPGA GE Fanuc
Embedded Systems
Proprietary
0x114A 0x6504 AD21 INTE N/A
PMC N/A N/A N/A AD16 INTA REQ0
Ethernet Controller Intel 82571EB 0x8086 0x105E N/A N/A N/A
PCI Host Bridge GMCH 0x8086 0x27A0 N/A N/A N/A
VGA Controller GMCH 0x8086 0x27A2 N/A N/A N/A
Integrated Graphics GMCH 0x8086 0x27A6 N/A N/A N/A
PCI-LPC Bridge ICH7-M 0x8086 0x27B0 N/A N/A N/A
USB UHCI
Controller
ICH7-M 0x8086 0x27C8
0x27C9
0x27CA
0x27CB
N/A N/A N/A
USB EHCI ICH7-M 0x8086 0x27CC N/A N/A N/A
SMBus Controller ICH7-M 0x8086 0x27DA N/A N/A N/A
PCI-E Controller ICH7-M 0x8086 0x27D0 N/A N/A N/A
PCI-E Controller ICH7-M 0x8086 0x27E0 N/A N/A N/A
DMI-PCI Bridge ICH7-M 0x8086 0x2448 N/A N/A N/A
PCI-E Switch PLX 8518 0x10B5 0x8518 N/A N/A N/A
PCI-E to PCI-X
Bridge
PLX 8114 0x10B5 0x8114 N/A N/A N/A
Optional Vita 41
Ethernet
Intel 82571EB 0x8086 0x1060 N/A N/A N/A