LAM 853-085372-114 逻辑控制
系统时序槽有3个专用差分对（853-085372-114 ），从TP1和TP2连接器连接到每个PXI Express混合外围槽的XP3连接器，并路由回系统时序槽的XP三连接器，如图1-5所示。853-085372-114 对可用于高速触发、同步和计时。有关详细信息，请参阅PXI Express规范。系统定时槽还具有连接到每个槽的单端（853-085372-114 ）触发器。详见图1-5。系统时序槽具有引脚（PXI_CLK10_IN），系统时序模块可以通过该引脚来提供10MHz时钟，背板将锁相到该10MHz时钟。有关详细信息，请参阅系统参考时钟部分。
系统定时槽是槽10。系统定时插槽将接受以下外围模块：•853-085372-114 12 GB/s--一个PXI Express系统定时模块，具有通过PCI Express交换机连接到系统插槽的x8、x4或x1 PCI Express链路。每个PXI Express外围插槽可以链接到Gen-2 x8 PCI Express，提供4 GB/s的最大标称单向带宽。•853-085372-114 24 GB/s--一个PXI Express系统定时模块，具有通过PCI Express交换机连接到系统插槽的x8、x4或x1 PCI Express链路。每个PXI Express外围插槽都可以链接到Gen-3 x8 PCI Express，提供8 GB/s的最大标称单向带宽。•PXI Express外围设备，具有通过PCI Express交换机连接到系统插槽的x8、x4或x1 PCI Express链路。•CompactPCI Express Type-2外围设备，具有通过PCI Express交换机连接到系统插槽的x8、x4或x1 853-085372-114 s链路。
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.