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| Slot | pci_<N> | device | function | irq | Description |
|---|---|---|---|---|---|
| - | 0 | 6 | 0 | 11 | NCR 53C810 PCI SCSI Adapter |
| - | 0 | 7 | 0 | - | Intel i82378 PCI ISA Bridge (SATURN) |
| 0 | 0 | 11 | 0 | 10 | <option> |
| 1 | 0 | 12 | 0 | 15 | <option> |
| 2 | 0 | 13 | 0 | 9 | <option> |
The IRQ stands for ISA IRQ Number because all interrupts are routed through the Intel i82378 PCI ISA Bridge (SATURN) resident cascade of Intel i8259 interrupt controllers.
So far the CHARON-AXP emulators do not support virtual NCR 53C810 PCI SCSI adapter. Instead, virtual QLOGIC ISP1040B PCI SCSI adapter is used.
AlphaServer 800 (4 PCI slots)
In addition to 4 PCI vacant slots there are 3 PCI positions occupied by on-board devices. All 7 PCI positions are listed in the following table in the order in which Alpha SRM console enumerates them.
| Slot | pci_<N> | device | function | irq | Description |
|---|---|---|---|---|---|
| - | 0 | 5 | 0 | 0 | QLOGIC ISP1020 PCI SCSI Adapter |
| - | 0 | 6 | 0 | 0 | S3 Trio32/64 Display Adapter |
| - | 0 | 7 | 0 | - | Intel i82375 PCI EISA Bridge (MERCURY) |
| 0 | 0 | 11 | 0 | 10 | <option> |
| 1 | 0 | 12 | 0 | 15 | <option> |
| 2 | 0 | 13 | 0 | 9 | <option> |
| 3 | 0 | 14 | 0 | 7 | <option> |
The IRQ stands for input line of ASIC interrupt controllers. It has nothing to do with "EISA" style interrupts. So far, the CHARON-AXP emulators do not emulate S3 Trio32/64 Display Adapter. So position of the device 6, function 0 on the PCI 0 remains empty.
AlphaServer 1000 (3 PCI slots)
In addition to 3 PCI vacant slots there are 2 PCI positions occupied by on-board devices. All 5 PCI positions are listed in the following table in the order in which Alpha SRM console enumerates them.
| Slot | pci_<N> | device | function | irq | Description |
|---|---|---|---|---|---|
| - | 0 | 6 | 0 | 12 | NCR 53C810 PCI SCSI Adapter |
| - | 0 | 7 | 0 | - | Intel i82375 PCI EISA Bridge (MERCURY) |
| 0 | 0 | 11 | 0 | 0 | <option> |
| 1 | 0 | 12 | 0 | 4 | <option> |
| 2 | 0 | 13 | 0 | 8 | <option> |
The IRQ stands for input line of ASIC interrupt controllers. It has nothing to do with "EISA" style interrupts. So far, the CHARON-AXP emulators do not emulate NCR 53C810 PCI SCSI adapter. Instead, emulation of QLOGIC ISP1040B PCI SCSI adapter is used.
AlphaServer 1000A (7 PCI slots)
In addition to 7 PCI vacant slots there are 3 PCI positions occupied by on-board devices. All 10 PCI positions are listed in the following table in the order in which Alpha SRM console enumerates them.
| Slot | pci_<N> | device | function | irq | Description |
|---|---|---|---|---|---|
| - | 0 | 6 | 0 | - | Intel i82375 PCI EISA Bridge (MERCURY) |
| - | 0 | 7 | 0 | - | DECchip 21050 PCI-to-PCI Bridge) |
| 0 | 0 | 11 | 0 | 1 | <option> |
| 1 | 0 | 12 | 0 | 2 | <option> |
| 2 | 0 | 13 | 0 | 3 | <option> |
| - | 1 | 13 | 0 | 0 | NCR 53C810 PCI SCSI Adapter |
| 3 | 1 | 13 | 0 | 7 | <option> |
| 4 | 1 | 13 | 0 | 9 | <option> |
| 5 | 1 | 13 | 0 | 11 | <option> |
| 6 | 1 | 13 | 0 | 13 | <option> |
The IRQ stands for input line of ASIC interrupt controllers. It has nothing to do with "EISA" style interrupts. So far, the CHARON-AXP emulators do not emulate NCR 53C810 PCI SCSI adapter. Instead, emulation of QLOGIC ISP1040B PCI SCSI adapter is used.
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