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1 11 samiam9512
Release 8.2.02i Map I.33
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Xilinx Mapping Report File for Design 'testbench'
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Design Information
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------------------
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Command Line   : C:\Xilinx\bin\nt\map.exe -ise
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C:/Xilinx/ISEexamples/cpu8080/cpu8080.ise -intstyle ise -p xc3s1000-ft256-4 -cm
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area -pr b -k 4 -c 100 -o testbench_map.ncd testbench.ngd testbench.pcf
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Target Device  : xc3s1000
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Target Package : ft256
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Target Speed   : -4
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Mapper Version : spartan3 -- $Revision: 1.1.1.1 $
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Mapped Date    : Wed Nov 01 08:45:26 2006
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Design Summary
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--------------
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Number of errors:      0
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Number of warnings:    9
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Logic Utilization:
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  Total Number Slice Registers:       890 out of  15,360    5%
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    Number used as Flip Flops:                   802
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    Number used as Latches:                       88
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  Number of 4 input LUTs:           3,884 out of  15,360   25%
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Logic Distribution:
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  Number of occupied Slices:                        3,425 out of   7,680   44%
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    Number of Slices containing only related logic:   3,425 out of   3,425  100%
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    Number of Slices containing unrelated logic:          0 out of   3,425    0%
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      *See NOTES below for an explanation of the effects of unrelated logic
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Total Number 4 input LUTs:          5,760 out of  15,360   37%
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  Number used as logic:              3,884
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  Number used as a route-thru:         196
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  Number used for Dual Port RAMs:    1,680
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    (Two LUTs used per Dual Port RAM)
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  Number of bonded IOBs:               44 out of     173   25%
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    IOB Flip Flops:                     9
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  Number of Block RAMs:                2 out of      24    8%
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  Number of MULT18X18s:                1 out of      24    4%
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  Number of GCLKs:                     3 out of       8   37%
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Total equivalent gate count for design:  278,010
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Additional JTAG gate count for IOBs:  2,112
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Peak Memory Usage:  194 MB
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NOTES:
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   Related logic is defined as being logic that shares connectivity - e.g. two
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   LUTs are "related" if they share common inputs.  When assembling slices,
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   Map gives priority to combine logic that is related.  Doing so results in
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   the best timing performance.
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   Unrelated logic shares no connectivity.  Map will only begin packing
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   unrelated logic into a slice once 99% of the slices are occupied through
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   related logic packing.
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   Note that once logic distribution reaches the 99% level through related
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   logic packing, this does not mean the device is completely utilized.
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   Unrelated logic packing will then begin, continuing until all usable LUTs
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   and FFs are occupied.  Depending on your timing budget, increased levels of
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   unrelated logic packing may adversely affect the overall timing performance
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   of your design.
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Table of Contents
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-----------------
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Section 1 - Errors
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Section 2 - Warnings
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Section 3 - Informational
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Section 4 - Removed Logic Summary
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Section 5 - Removed Logic
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Section 6 - IOB Properties
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Section 7 - RPMs
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Section 8 - Guide Report
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Section 9 - Area Group and Partition Summary
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Section 10 - Modular Design Summary
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Section 11 - Timing Report
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Section 12 - Configuration String Information
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Section 1 - Errors
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------------------
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Section 2 - Warnings
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--------------------
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WARNING:LIT:243 - Logical network adm3a/display/inst_Mram_mem960/SPO has no
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   load.
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WARNING:LIT:395 - The above warning message base_net_load_rule is repeated 839
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   more times for the following (max. 5 shown):
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   adm3a/display/inst_Mram_mem1100/SPO,
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   adm3a/display/inst_Mram_mem2100/SPO,
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   adm3a/display/inst_Mram_mem3100/SPO,
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   adm3a/display/inst_Mram_mem4100/SPO,
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   adm3a/display/inst_Mram_mem5100/SPO
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   To see the details of these warning messages, please use the -detail switch.
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WARNING:LIT:176 - Clock buffer is designated to drive clock loads. BUFGMUX
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   symbol "physical_group_clkdiv<3>/clkdiv_3_BUFG" (output signal=clkdiv<3>) has
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   a mix of clock and non-clock loads. The non-clock loads are:
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   Pin LI of Mcount_clkdiv_xor<3>
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WARNING:LIT:175 - Clock buffer is designated to drive clock loads. BUFGMUX
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   symbol "physical_group_reset_n_BUFGP/reset_n_BUFGP/BUFG" (output
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   signal=reset_n_BUFGP) has a mix of clock and non-clock loads. Some of the
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   non-clock loads are (maximum of 5 listed):
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   Pin PRE of cpu/ei
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   Pin CE of cpu/carry
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   Pin CE of cpu/addr_0
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   Pin CE of cpu/addr_1
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   Pin CE of cpu/addr_2
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WARNING:Pack:266 - The function generator adm3a/display/chradr<4>8 failed to
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   merge with F5 multiplexer adm3a/display/chradr<5>_f5_35.  There is a conflict
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   for the FXMUX.  The design will exhibit suboptimal timing.
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WARNING:PhysDesignRules:372 - Gated clock. Clock net select1/selectd/_and0000 is
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   sourced by a combinatorial pin. This is not good design practice. Use the CE
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   pin to control the loading of data into the flip-flop.
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WARNING:PhysDesignRules:372 - Gated clock. Clock net select1/selecta/_and0000 is
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   sourced by a combinatorial pin. This is not good design practice. Use the CE
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   pin to control the loading of data into the flip-flop.
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WARNING:PhysDesignRules:372 - Gated clock. Clock net select1/selectb/_and0000 is
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   sourced by a combinatorial pin. This is not good design practice. Use the CE
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   pin to control the loading of data into the flip-flop.
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WARNING:PhysDesignRules:372 - Gated clock. Clock net select1/selectc/_and0000 is
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   sourced by a combinatorial pin. This is not good design practice. Use the CE
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   pin to control the loading of data into the flip-flop.
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Section 3 - Informational
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-------------------------
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INFO:MapLib:562 - No environment variables are currently set.
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INFO:MapLib:535 - The following Virtex BUFG(s) is/are being retargetted to
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   Virtex2 BUFGMUX(s) with input tied to I0 and Select pin tied to constant 0:
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   BUFG symbol "clkdiv_3_BUFG" (output signal=clkdiv<3>),
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   BUFGP symbol "clock_BUFGP" (output signal=clock_BUFGP),
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   BUFGP symbol "reset_n_BUFGP" (output signal=reset_n_BUFGP)
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INFO:LIT:244 - All of the single ended outputs in this design are using slew
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   rate limited output drivers. The delay on speed critical single ended outputs
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   can be dramatically reduced by designating them as fast outputs in the
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   schematic.
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Section 4 - Removed Logic Summary
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---------------------------------
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   1 block(s) removed
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   3 block(s) optimized away
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   1 signal(s) removed
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Section 5 - Removed Logic
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-------------------------
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The trimmed logic reported below is either:
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   1. part of a cycle
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   2. part of disabled logic
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   3. a side-effect of other trimmed logic
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The signal "cpu/regfil_5_1_rt1" is unused and has been removed.
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 Unused block "cpu/regfil_5_1_rt1" (ROM) removed.
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Optimized Block(s):
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TYPE            BLOCK
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GND             XST_GND
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VCC             XST_VCC
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MUXCY           cpu/Madd__AUX_12_Madd_cy<2>
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To enable printing of redundant blocks removed and signals merged, set the
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detailed map report option and rerun map.
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Section 6 - IOB Properties
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--------------------------
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+------------------------------------------------------------------------------------------------------------------------+
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| IOB Name                           | Type    | Direction | IO Standard | Drive    | Slew | Reg (s)  | Resistor | IOB   |
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|                                    |         |           |             | Strength | Rate |          |          | Delay |
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+------------------------------------------------------------------------------------------------------------------------+
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| addr<0>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<1>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<2>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<3>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<4>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<5>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<6>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<7>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<8>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<9>                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<10>                           | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<11>                           | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<12>                           | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<13>                           | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<14>                           | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| addr<15>                           | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| b<0>                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| b<1>                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| b<2>                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| clock                              | IOB     | INPUT     | LVCMOS25    |          |      |          |          |       |
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| data<0>                            | IOB     | BIDIR     | LVCMOS25    | 12       | SLOW | INFF1    |          | IFD   |
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| data<1>                            | IOB     | BIDIR     | LVCMOS25    | 12       | SLOW | INFF1    |          | IFD   |
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| data<2>                            | IOB     | BIDIR     | LVCMOS25    | 12       | SLOW | INFF1    |          | IFD   |
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| data<3>                            | IOB     | BIDIR     | LVCMOS25    | 12       | SLOW | INFF1    |          | IFD   |
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| data<4>                            | IOB     | BIDIR     | LVCMOS25    | 12       | SLOW | INFF1    |          | IFD   |
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| data<5>                            | IOB     | BIDIR     | LVCMOS25    | 12       | SLOW | INFF1    |          | IFD   |
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| data<6>                            | IOB     | BIDIR     | LVCMOS25    | 12       | SLOW | INFF1    |          | IFD   |
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| data<7>                            | IOB     | BIDIR     | LVCMOS25    | 12       | SLOW | INFF1    |          | IFD   |
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| g<0>                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| g<1>                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| g<2>                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| hsync_n                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW | OFF1     |          |       |
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| inta                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| intr                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| r<0>                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| r<1>                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| r<2>                               | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| readio                             | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| readmem                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| reset_n                            | IOB     | INPUT     | LVCMOS25    |          |      |          |          |       |
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| vsync_n                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| waitr                              | IOB     | INPUT     | LVCMOS25    |          |      |          |          |       |
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| writeio                            | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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| writemem                           | IOB     | OUTPUT    | LVCMOS25    | 12       | SLOW |          |          |       |
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+------------------------------------------------------------------------------------------------------------------------+
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Section 7 - RPMs
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----------------
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Section 8 - Guide Report
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------------------------
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Guide not run on this design.
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Section 9 - Area Group and Partition Summary
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--------------------------------------------
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Partition Implementation Status
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-------------------------------
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  No Partitions were found in this design.
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-------------------------------
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Area Group Information
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----------------------
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  No area groups were found in this design.
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----------------------
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237
Section 10 - Modular Design Summary
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-----------------------------------
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Modular Design not used for this design.
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Section 11 - Timing Report
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--------------------------
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This design was not run using timing mode.
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Section 12 - Configuration String Details
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-----------------------------------------
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Use the "-detail" map option to print out Configuration Strings

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