Chapter 1
Getting Started
PXI Peripheral Slots
There are four PXI peripheral slots which will accept PXI or CompactPCI
peripherals: slot 2, slot 6, slot 7, and slot 8. These slots are on the
backplane’s 32-bit PCI bus. These slots offer full PXI functionality, but
have no PXI Express features. The 64-bit PCI signals on the P2 connectors
are not connected.
System Timing Slot
The System Timing Slot is slot 4. The system timing slot will accept the
following peripheral modules:
•
A PXI Express System Timing Module with x4 or x1 PCI Express link
to the system slot.
•
A PXI Express Peripheral with x4 or x1 PCI Express link to the system
slot.
•
A CompactPCI Express Type-2 Peripheral with x4 or x1 PCI Express
link to the system slot.
The system timing slot has 3 dedicated differential pairs (PXIe_DSTAR)
connected from the TP2 connector to the XP3 connector for each hybrid
peripheral slot, as well as routed back to the XP3 connector of the system
timing slot as shown in Figure 1-3. The PXIe_DSTAR pairs can be used for
high-speed triggering, synchronization and clocking. Refer to the
PXI Express Specification
for details.
The system timing slot also has a single-ended (PXI Star) trigger connected
to every slot. Refer to Figure 1-3 for details.
The system timing slot has a pin (PXI_CLK10_IN) through which a system
timing module may source a 10MHz clock to which the backplane will
phase-lock. Refer to the
section for details.
The system timing slot has a pin (PXIe_SYNC_CTRL) through which a
system timing module can control the PXIe_SYNC100 timing. Refer to the
PXI Express Specification
and the
section of this
chapter for details.
Manual
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