General Description: The last page of the CORE Generator datasheet for the Single Port Block Memory lists a number of XCO file parameters that can be used to customize the core, including the "Clock_On" parameter, which gives you the option of specifying a rising or falling edge clock. This feature is actually not supported in the module GUI.
解决方案
This capability has been added to the C_IP5 version of the GUI, but because of a bug with this functionality, please refer to the workaround described in (Xilinx Answer #9559).