DCM includes a clock delay locked loop used to minimize clock skew for Spartan-3, Virtex-II, Virtex-II Pro, and Virtex-II Pro X devices. DCM synchronizes the clock signal at the feedback clock input (CLKFB) to the clock signal at the input clock (CLKIN). The locked output (LOCKED) is high when the two signals are in phase. The signals are considered to be in phase when their rising edges are within a specified time (ps) of each other.

wtut_sc\clk_div_262k.sch
.......\create_wtut_sc.tcl
.......\debounce.sch
.......\LED_control.sch
.......\statmach.dia
.......\stopwatch.sch
.......\stopwatch_tb.v
.......\stopwatch_tb.vhd
.......\wtut_sc_completed
.......\.................\clk_div_262k.sch
.......\.................\clk_div_262k.sym
.......\.................\create_wtut_sc.tcl
.......\.................\dcm1.sym
.......\.................\dcm1.v
.......\.................\dcm1.xaw
.......\.................\dcm1_arwz.ucf
.......\.................\dcm_signal.do
.......\.................\dcm_signal_tim.do
.......\.................\debounce.sch
.......\.................\debounce.sym
.......\.................\hex2led.sym
.......\.................\hex2led.vhd
.......\.................\isimwavedata.xwv
.......\.................\LED_control.sch
.......\.................\LED_control.sym
.......\.................\statmach.dia
.......\.................\statmach.sym
.......\.................\STATMACH.v
.......\.................\STATMACH.vhd
.......\.................\stopwatch.sch
.......\.................\stopwatch.ucf
.......\.................\ten_cnt.asy
.......\.................\ten_cnt.edn
.......\.................\ten_cnt.ngo
.......\.................\ten_cnt.sym
.......\.................\ten_cnt.v
.......\.................\ten_cnt.veo
.......\.................\ten_cnt.vhd
.......\.................\ten_cnt.vho
.......\.................\ten_cnt.xco
.......\.................\ten_cnt_c_counter_binary_v9_0_xst_1.ngc
.......\.................\ten_cnt_flist.txt
.......\.................\ten_cnt_readme.txt
.......\.................\time_cnt.sch
.......\.................\time_cnt.sym
.......\.................\time_cnt.vf
.......\.................\time_cnt_tb.tbw
.......\.................\time_cnt_tb.xwv
wtut_sc
.......\wtut_sc_completed\stopwatch_tb.v
.......\.................\stopwatch_tb.vhd

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