LAM 853-085372-114 邏輯控制
系統(tǒng)時序槽有3個專用差分對（853-085372-114 ），從TP1和TP2連接器連接到每個PXI Express混合外圍槽的XP3連接器，并路由回系統(tǒng)時序槽的XP三連接器，如圖1-5所示。853-085372-114 對可用于高速觸發(fā)、同步和計時。有關(guān)詳細信息，請參閱PXI Express規(guī)范。系統(tǒng)定時槽還具有連接到每個槽的單端（853-085372-114 ）觸發(fā)器。詳見圖1-5。系統(tǒng)時序槽具有引腳（PXI_CLK10_IN），系統(tǒng)時序模塊可以通過該引腳來提供10MHz時鐘，背板將鎖相到該10MHz時鐘。有關(guān)詳細信息，請參閱系統(tǒng)參考時鐘部分。
系統(tǒng)定時槽是槽10。系統(tǒng)定時插槽將接受以下外圍模塊：?853-085372-114 12 GB/s--一個PXI Express系統(tǒng)定時模塊，具有通過PCI Express交換機連接到系統(tǒng)插槽的x8、x4或x1 PCI Express鏈路。每個PXI Express外圍插槽可以鏈接到Gen-2 x8 PCI Express，提供4 GB/s的最大標稱單向帶寬。?853-085372-114 24 GB/s--一個PXI Express系統(tǒng)定時模塊，具有通過PCI Express交換機連接到系統(tǒng)插槽的x8、x4或x1 PCI Express鏈路。每個PXI Express外圍插槽都可以鏈接到Gen-3 x8 PCI Express，提供8 GB/s的最大標稱單向帶寬。?PXI Express外圍設(shè)備，具有通過PCI Express交換機連接到系統(tǒng)插槽的x8、x4或x1 PCI Express鏈路。?CompactPCI Express Type-2外圍設(shè)備，具有通過PCI Express交換機連接到系統(tǒng)插槽的x8、x4或x1 853-085372-114 s鏈路。
The system timing slot also has a single-ended (853-085372-114 ) trigger connected to every slot. Refer to Figure 1-5 for details. The system timing slot has a pin (853-085372-114 N) through which a system timing module may source a 10 MHz clock to which the backplane will phase-lock. Refer to the System Reference Clock section for details.
A CompactPCI Express Type-2 Peripheral with x8, x4, or x1 PCI Express link to the system slot through a PCI Express switch. 853-085372-114 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 hybrid peripheral slot, as well as routed back to the XP3 connector of the system timing slot as shown in Figure 1-5. The PXIe_DSTAR pairs can be used for high-speed triggering, synchronization and clocking. Refer to the 853-085372-114 PXI Express Specification for details.
The System Timing853-085372-114 Slot is slot 10. The system timing slot will accept the following peripheral modules: ? NI PXIe-1085 12 GB/s—A PXI Express System Timing Module with x8, x4, or x1 PCI Express link to the system slot through a PCI Express switch. Each PXI Express peripheral slot can link up to a Gen-2 x8 PCI Express, providing a maximum nominal single-direction bandwidth of 4 GB/s. ?853-085372-114 NI PXIe-1085 24 GB/s—A PXI Express System Timing Module with x8, x4, or x1 PCI Express link to the system slot through a PCI Express switch. Each PXI Express peripheral slot can link up to a Gen-3 x8 PCI Express, providing a maximum nominal single-direction bandwidth of 8 GB/s. ? A PXI Express Peripheral with x8, x4, or x1 PCI Express link to the system slot through a PCI Express switch.