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PCI slots
PCI slots
The following table shows an overview of the PCI slots:
PCI slot
Type
mechanical
1
PCIe x8
2
PCIe x8
3
PCI 32
4
PCI-X 64
5
PCI-X 64
6
PCIe x8
7
PCIe x8
IOOP™ (PCI bus speed optimization)
The hardware of the system board optimizes the PCI bus speed of the slots 4
and 5, depending on the slots' population.
– the PCI bus speed is 133 MHz, if only one of the two slots (or no slot) is
populated.
– the PCI bus speed is 100 MHz for all other population variants for slot 4
and 5.
PCI, PCI-X, PCI Express interrupts
Each device connected to a PCI bus, a PCI-X bus or PCI Express can use up
to four interrupt signals depending on the functionality.
PCI and PCI-X buses use four lines named INTA to INTD, typically connected
to all devices on the bus in order to periodically balance interrupt load. An
interrupt signal may thereby be used simultaneously by multiple devices
(interrupt sharing).
PCI Express devices send their interrupts through messages. The interrupts are
defined by the system design.
18
Function
PCIe x4 or PCIe x8 slot (optional)
PCIe x4 slot or not available if slot 1 x8
(optional)
32-bit PCI slot
64-bit PCI-X slot
133 MHz if only one card has been populated
in slot 4 or 5
100 MHz for population with 2 cards
PCIe x4 or PCIe x8 slot (optional)
PCIe x4 slot or not available if slot 6 x8
(optional)
Technical Manual
Features
D2509 (TX200 S4)
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