Справочник Пользователя для National Instruments NI PXIe-1065

There are three PXI Express peripheral slots: slots 8–10. Slot 8 is directly 
connected to the system slot with a x4 PCI Express link. Slots 9 and 10 are 
connected to the system slot through a PCI Express switch. PXI Express 
peripheral slots can accept the following modules:

•

A PXI Express Peripheral with x4 or x1 PCI Express link to the system 
slot or through a switch to the system slot.

•

A CompactPCI Express Type-2 Peripheral with x4 or x1 PCI Express 
link to the system slot or through a switch to the system slot.

The System Timing Slot is slot 14. 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 through a PCIe switch.

•

A PXI Express Peripheral with x4 or x1 PCI Express link to the system 
slot through a PCIe switch.

•

A CompactPCI Express Type-2 Peripheral with x4 or x1 PCI Express 
link to the system slot through a PCIe switch.

The system timing slot has 3 dedicated differential pairs (PXIe_DSTAR) 
connected from the TP1 and TP2 connectors to the XP3 connector for each 
PXI Express peripheral or 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.