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petebleack |
Release 7.1.04i - xst H.42
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Copyright (c) 1995-2005 Xilinx, Inc. All rights reserved.
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--> Parameter TMPDIR set to __projnav
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CPU : 0.00 / 0.33 s | Elapsed : 0.00 / 0.00 s
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--> Parameter xsthdpdir set to ./xst
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CPU : 0.00 / 0.33 s | Elapsed : 0.00 / 0.00 s
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--> Reading design: follow_counter.prj
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TABLE OF CONTENTS
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1) Synthesis Options Summary
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2) HDL Compilation
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3) HDL Analysis
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4) HDL Synthesis
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5) Advanced HDL Synthesis
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5.1) HDL Synthesis Report
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6) Low Level Synthesis
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7) Final Report
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7.1) Device utilization summary
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7.2) TIMING REPORT
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=========================================================================
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* Synthesis Options Summary *
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=========================================================================
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---- Source Parameters
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Input File Name : "follow_counter.prj"
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Input Format : mixed
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Ignore Synthesis Constraint File : NO
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---- Target Parameters
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Output File Name : "follow_counter"
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Output Format : NGC
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Target Device : xc2v2000-6-bg575
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---- Source Options
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Top Module Name : follow_counter
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Automatic FSM Extraction : YES
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FSM Encoding Algorithm : Auto
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FSM Style : lut
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RAM Extraction : Yes
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RAM Style : Auto
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ROM Extraction : Yes
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ROM Style : Auto
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Mux Extraction : YES
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Mux Style : Auto
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Decoder Extraction : YES
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Priority Encoder Extraction : YES
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Shift Register Extraction : YES
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Logical Shifter Extraction : YES
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XOR Collapsing : YES
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Resource Sharing : YES
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Multiplier Style : auto
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Automatic Register Balancing : No
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---- Target Options
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Add IO Buffers : YES
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Global Maximum Fanout : 500
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Add Generic Clock Buffer(BUFG) : 16
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Register Duplication : YES
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Equivalent register Removal : YES
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Slice Packing : YES
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Pack IO Registers into IOBs : auto
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---- General Options
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Optimization Goal : Speed
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Optimization Effort : 2
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Keep Hierarchy : NO
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Global Optimization : AllClockNets
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RTL Output : Yes
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Write Timing Constraints : NO
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Hierarchy Separator : _
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Bus Delimiter : <>
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Case Specifier : maintain
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Slice Utilization Ratio : 100
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Slice Utilization Ratio Delta : 5
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---- Other Options
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lso : follow_counter.lso
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Read Cores : YES
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cross_clock_analysis : NO
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verilog2001 : YES
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safe_implementation : No
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Optimize Instantiated Primitives : NO
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tristate2logic : Yes
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use_clock_enable : Yes
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use_sync_set : Yes
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use_sync_reset : Yes
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enable_auto_floorplanning : No
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=========================================================================
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=========================================================================
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* HDL Compilation *
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=========================================================================
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Compiling vhdl file "C:/Xilinx/bin/ArithmeticCoder/FOLLOW_COUNTER.vhd" in Library work.
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Architecture rtl of Entity follow_counter is up to date.
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=========================================================================
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* HDL Analysis *
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=========================================================================
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Analyzing Entity (Architecture ).
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Entity analyzed. Unit generated.
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=========================================================================
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* HDL Synthesis *
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=========================================================================
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Synthesizing Unit .
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Related source file is "C:/Xilinx/bin/ArithmeticCoder/FOLLOW_COUNTER.vhd".
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Found 8-bit comparator lessequal for signal <$n0003> created at line 30.
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Found 8-bit comparator greater for signal <$n0004> created at line 39.
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Found 8-bit updown counter for signal .
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Summary:
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inferred 1 Counter(s).
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inferred 2 Comparator(s).
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Unit synthesized.
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=========================================================================
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* Advanced HDL Synthesis *
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=========================================================================
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Advanced RAM inference ...
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Advanced multiplier inference ...
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Advanced Registered AddSub inference ...
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Dynamic shift register inference ...
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=========================================================================
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HDL Synthesis Report
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Macro Statistics
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# Counters : 1
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8-bit updown counter : 1
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# Comparators : 2
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8-bit comparator greater : 1
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8-bit comparator lessequal : 1
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=========================================================================
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=========================================================================
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* Low Level Synthesis *
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=========================================================================
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WARNING:Xst:1988 - Unit : instances , of unit and unit are dual, second instance is removed
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Optimizing unit ...
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Loading device for application Rf_Device from file '2v2000.nph' in environment C:/Xilinx.
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Mapping all equations...
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Building and optimizing final netlist ...
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Found area constraint ratio of 100 (+ 5) on block follow_counter, actual ratio is 0.
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=========================================================================
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* Final Report *
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=========================================================================
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Final Results
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RTL Top Level Output File Name : follow_counter.ngr
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Top Level Output File Name : follow_counter
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Output Format : NGC
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Optimization Goal : Speed
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Keep Hierarchy : NO
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Design Statistics
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# IOs : 5
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Macro Statistics :
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# Registers : 1
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# 8-bit register : 1
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# Adders/Subtractors : 1
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# 8-bit addsub : 1
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# Comparators : 2
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# 8-bit comparator greater : 1
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# 8-bit comparator lessequal : 1
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Cell Usage :
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# BELS : 29
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# LUT2 : 3
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# LUT3 : 1
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# LUT3_L : 8
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# LUT4 : 1
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# LUT4_D : 1
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# MUXCY : 7
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# XORCY : 8
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# FlipFlops/Latches : 8
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# FDRE : 8
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# Clock Buffers : 1
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# BUFGP : 1
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# IO Buffers : 4
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# IBUF : 3
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# OBUF : 1
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=========================================================================
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Device utilization summary:
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---------------------------
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Selected Device : 2v2000bg575-6
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Number of Slices: 7 out of 10752 0%
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Number of Slice Flip Flops: 8 out of 21504 0%
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Number of 4 input LUTs: 14 out of 21504 0%
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Number of bonded IOBs: 5 out of 408 1%
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Number of GCLKs: 1 out of 16 6%
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=========================================================================
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TIMING REPORT
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NOTE: THESE TIMING NUMBERS ARE ONLY A SYNTHESIS ESTIMATE.
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FOR ACCURATE TIMING INFORMATION PLEASE REFER TO THE TRACE REPORT
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GENERATED AFTER PLACE-and-ROUTE.
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Clock Information:
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------------------
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-----------------------------------+------------------------+-------+
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Clock Signal | Clock buffer(FF name) | Load |
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-----------------------------------+------------------------+-------+
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CLOCK | BUFGP | 8 |
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-----------------------------------+------------------------+-------+
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Timing Summary:
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---------------
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Speed Grade: -6
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Minimum period: 3.586ns (Maximum Frequency: 278.901MHz)
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Minimum input arrival time before clock: 3.673ns
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Maximum output required time after clock: 7.321ns
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Maximum combinational path delay: 6.022ns
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Timing Detail:
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--------------
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All values displayed in nanoseconds (ns)
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=========================================================================
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Timing constraint: Default period analysis for Clock 'CLOCK'
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Clock period: 3.586ns (frequency: 278.901MHz)
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Total number of paths / destination ports: 128 / 16
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-------------------------------------------------------------------------
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Delay: 3.586ns (Levels of Logic = 3)
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Source: NUMBER_2 (FF)
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Destination: NUMBER_6 (FF)
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Source Clock: CLOCK rising
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Destination Clock: CLOCK rising
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Data Path: NUMBER_2 to NUMBER_6
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Gate Net
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Cell:in->out fanout Delay Delay Logical Name (Net Name)
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---------------------------------------- ------------
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FDRE:C->Q 2 0.449 0.743 NUMBER_2 (NUMBER_2)
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LUT4:I0->O 1 0.347 0.414 _n000419 (CHOICE19)
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LUT4_D:I3->LO 1 0.347 0.127 _n0004112 (N15)
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LUT3:I2->O 8 0.347 0.621 _n00091 (_n0009)
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FDRE:CE 0.190 NUMBER_0
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----------------------------------------
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Total 3.586ns (1.680ns logic, 1.905ns route)
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(46.9% logic, 53.1% route)
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=========================================================================
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Timing constraint: Default OFFSET IN BEFORE for Clock 'CLOCK'
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Total number of paths / destination ports: 112 / 24
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-------------------------------------------------------------------------
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Offset: 3.673ns (Levels of Logic = 10)
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Source: INCREMENT (PAD)
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Destination: NUMBER_7 (FF)
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Destination Clock: CLOCK rising
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Data Path: INCREMENT to NUMBER_7
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Gate Net
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Cell:in->out fanout Delay Delay Logical Name (Net Name)
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---------------------------------------- ------------
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IBUF:I->O 10 0.653 0.879 INCREMENT_IBUF (INCREMENT_IBUF)
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LUT2:I0->O 1 0.347 0.383 NUMBER__n00021 (NUMBER__n0002)
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MUXCY:CI->O 1 0.042 0.000 follow_counter_NUMBER__n0000<0>cy (follow_counter_NUMBER__n0000<0>_cyo)
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MUXCY:CI->O 1 0.042 0.000 follow_counter_NUMBER__n0000<1>cy (follow_counter_NUMBER__n0000<1>_cyo)
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MUXCY:CI->O 1 0.042 0.000 follow_counter_NUMBER__n0000<2>cy (follow_counter_NUMBER__n0000<2>_cyo)
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MUXCY:CI->O 1 0.042 0.000 follow_counter_NUMBER__n0000<3>cy (follow_counter_NUMBER__n0000<3>_cyo)
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MUXCY:CI->O 1 0.042 0.000 follow_counter_NUMBER__n0000<4>cy (follow_counter_NUMBER__n0000<4>_cyo)
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MUXCY:CI->O 1 0.042 0.000 follow_counter_NUMBER__n0000<5>cy (follow_counter_NUMBER__n0000<5>_cyo)
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MUXCY:CI->O 0 0.042 0.000 follow_counter_NUMBER__n0000<6>cy (follow_counter_NUMBER__n0000<6>_cyo)
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XORCY:CI->O 1 0.824 0.000 follow_counter_NUMBER__n0000<7>_xor (NUMBER__n0000<7>)
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FDRE:D 0.293 NUMBER_7
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----------------------------------------
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Total 3.673ns (2.411ns logic, 1.262ns route)
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(65.6% logic, 34.4% route)
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=========================================================================
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Timing constraint: Default OFFSET OUT AFTER for Clock 'CLOCK'
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Total number of paths / destination ports: 8 / 1
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-------------------------------------------------------------------------
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Offset: 7.321ns (Levels of Logic = 4)
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Source: NUMBER_2 (FF)
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Destination: OUTPUT (PAD)
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Source Clock: CLOCK rising
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Data Path: NUMBER_2 to OUTPUT
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Gate Net
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Cell:in->out fanout Delay Delay Logical Name (Net Name)
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---------------------------------------- ------------
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FDRE:C->Q 2 0.449 0.743 NUMBER_2 (NUMBER_2)
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LUT4:I0->O 1 0.347 0.415 _n000419 (CHOICE19)
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LUT4_D:I3->O 1 0.347 0.548 _n0004112 (_n0004)
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LUT2:I1->O 1 0.347 0.383 _n00021 (OUTPUT_OBUF)
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OBUF:I->O 3.743 OUTPUT_OBUF (OUTPUT)
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----------------------------------------
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Total 7.321ns (5.233ns logic, 2.088ns route)
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(71.5% logic, 28.5% route)
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=========================================================================
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Timing constraint: Default path analysis
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Total number of paths / destination ports: 1 / 1
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-------------------------------------------------------------------------
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Delay: 6.022ns (Levels of Logic = 3)
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Source: TEST (PAD)
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Destination: OUTPUT (PAD)
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Data Path: TEST to OUTPUT
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Gate Net
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Cell:in->out fanout Delay Delay Logical Name (Net Name)
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---------------------------------------- ------------
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IBUF:I->O 11 0.653 0.897 TEST_IBUF (TEST_IBUF)
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LUT2:I0->O 1 0.347 0.383 _n00021 (OUTPUT_OBUF)
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OBUF:I->O 3.743 OUTPUT_OBUF (OUTPUT)
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----------------------------------------
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Total 6.022ns (4.743ns logic, 1.279ns route)
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(78.8% logic, 21.2% route)
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=========================================================================
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CPU : 4.63 / 4.98 s | Elapsed : 5.00 / 5.00 s
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-->
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Total memory usage is 121148 kilobytes
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Number of errors : 0 ( 0 filtered)
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Number of warnings : 1 ( 0 filtered)
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Number of infos : 0 ( 0 filtered)
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