Pci devices, Table, Aaaaaa – Motorola ATCA-717 User Manual
Page 136: Pci device interrupts, Figure, Pci structure
Maps and Registers
PCI Devices
136
PENT/ATCA−717
PCI Devices
The following figure shows the on−board PCI device structure.
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PMC#1
PMC#2
PMC#3
PMC#4
ETH#2
ETH#0/1
PCI I/O Bridge
South Bridge
PCI
PCI
PCI
PCI
PCI
PCI
PCI
PCI
Bus #5
Bus #4
Dev. No. = 3
Dev. No. = 1
Dev. No. = 2
Dev. No. = 4
Dev. No. = 4
Dev. No. = 4
Bus #2
Bus #1
Dev. No. = 31
Dev. No. = 29
Dev. No. = 30
Dev. No. = 28
Host Bridge
PCI
PCI
Bus #3
Bus #0
Dev. No. = 2
ETH#0/1
Intel
82540EM
Intel
82546EB/GB
Figure 41:
PCI Structure
The following table lists the PCI devices interrupt signals which are routed to the South
Bridge. BIOS allows to map these signals to standard ISA interrupts.
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Table 17:
PCI Device Interrupts
PCI Device
PCI IRQ
Device
No.
IDSEL
PCI Bus
PMC 1
PIRQA_N|PIRQB_N|PIRQC_N|PIRQD_N
3
19
5
PMC 2
PIRQA_N|PIRQB_N|PIRQC_N|PIRQD_N
1
17
5
PMC 3
PIRQA_N|PIRQB_N|PIRQC_N|PIRQD_N
2
18
4
PMC 4
PIRQA_N|PIRQB_N|PIRQC_N|PIRQD_N
4
20
4
ETH 2
PIRQC_N
4
20
2
ETH 0|1
PIRQA_N|PIRQB_N
4
20
1