EMERSON 5X00059G01卡件控制器
PCI总线4使用PEX8112桥连接到USB控制器，并配置为33MHz PCI模式，因为USB控制器仅支持33MHz。4.10.1 VME控制器MVME7100的VMEbus接口由Tsi148 VMEbus控制器提供。Tsi148提供所需的VME、VME扩展和2eSST功能。TI SN74VMEH22501收发器用于缓冲Tsi148和VME背板之间的VME信号。有关更多详细信息和/或编程信息，请参阅Tsi148用户手册。4.10.2 USB NEC uPD720101 USB 2.0主机控制器提供带有集成收发器的USB端口，用于连接任何USB兼容设备或集线器。USB通道1路由到位于前面板的单个USB连接器。前面板USB端口的直流电源通过USB电源开关提供，该开关为端口1提供软启动、电流限制、过电流检测和电源启用。有关更多详细信息和/或编程信息，请参阅uPD720101数据表。
PCI bus 4 connects to the USB controller using a PEX8112 bridge and is configured for 33MHz PCI mode since the USB controller is only 33MHz capable. 4.10.1 VME Controller The VMEbus interface for the MVME7100 is provided by the Tsi148 VMEbus controller. The Tsi148 provides the required VME, VME extensions, and 2eSST functions. TI SN74VMEH22501 transceivers are used to buffer the VME signals between the Tsi148 and the VME backplane. Refer to the Tsi148 user's manual for additional details and/or programming information. 4.10.2 USB The NEC uPD720101 USB 2.0 Host Controller provides USB ports with integrated transceivers for connectivity with any USB compliant device or hub. USB channel 1 is routed to a single USB connector located at the front panel. DC power to the front panel USB port is supplied via a USB power switch which provides soft-start, current limiting, over current detection, and power enable for port 1. Refer to the uPD720101 data sheet for additional details and/or programming information.
