Xilinx Virtex-6 Libraries Guide for HDL Designs

Chapter 2: About UnimacrosCOUNTER_TC_MACROMacro: Counter with Terminal CountIntroductionThe COUNTER_TC_MACRO simplifies the instantiation of the DSP48 block when used as a terminal count,up/down counter. It features parameterizable output width, terminal count values, count by and count directionin order to ease the integration of DSP48 block into HDL.Port DescriptionName Direction Width (Bits) FunctionOutput PortsTC Output 1 Terminal count goes high when TC_VALUE isreachedQ Output Variable, see WIDTH_DATAattribute.Input PortsCounter outputCE Input 1 Clock EnableCLK Input 1 ClockRST Input 1 Synchronous ResetDesign Entry MethodThis unimacro can be instantiated only. It is a parameterizable version of the primitive.InstantiationInferenceCORE Generator and wizardsMacro supportYesNoNoRecommendedVirtex-6 Libraries Guide for HDL DesignsUG623 (v 11.4) December 2, 2009 www.xilinx.com 63