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lisper.cpus-pdp8/xilinx/vga/fpga_map.mrp
2007-01-02 16:28:10 +00:00

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Release 8.2i Map I.31
Xilinx Mapping Report File for Design 'fpga'
Design Information
------------------
Command Line : map -ise /mwave/work/nt/xess/xilinx/vga/vga.ise -intstyle ise
-p xc2s200-fg256-5 -cm area -pr b -k 4 -c 100 -tx off -o fpga_map.ncd fpga.ngd
fpga.pcf
Target Device : xc2s200
Target Package : fg256
Target Speed : -5
Mapper Version : spartan2 -- $Revision: 1.34.32.1 $
Mapped Date : Mon Jan 1 22:22:08 2007
Design Summary
--------------
Number of errors: 0
Number of warnings: 7
Logic Utilization:
Total Number Slice Registers: 174 out of 4,704 3%
Number used as Flip Flops: 173
Number used as Latches: 1
Number of 4 input LUTs: 688 out of 4,704 14%
Logic Distribution:
Number of occupied Slices: 402 out of 2,352 17%
Number of Slices containing only related logic: 402 out of 402 100%
Number of Slices containing unrelated logic: 0 out of 402 0%
*See NOTES below for an explanation of the effects of unrelated logic
Total Number 4 input LUTs: 716 out of 4,704 15%
Number used as logic: 688
Number used as a route-thru: 28
Number of bonded IOBs: 22 out of 176 12%
IOB Flip Flops: 2
Number of Block RAMs: 7 out of 14 50%
Number of GCLKs: 3 out of 4 75%
Number of GCLKIOBs: 1 out of 4 25%
Total equivalent gate count for design: 120,964
Additional JTAG gate count for IOBs: 1,104
Peak Memory Usage: 370 MB
NOTES:
Related logic is defined as being logic that shares connectivity - e.g. two
LUTs are "related" if they share common inputs. When assembling slices,
Map gives priority to combine logic that is related. Doing so results in
the best timing performance.
Unrelated logic shares no connectivity. Map will only begin packing
unrelated logic into a slice once 99% of the slices are occupied through
related logic packing.
Note that once logic distribution reaches the 99% level through related
logic packing, this does not mean the device is completely utilized.
Unrelated logic packing will then begin, continuing until all usable LUTs
and FFs are occupied. Depending on your timing budget, increased levels of
unrelated logic packing may adversely affect the overall timing performance
of your design.
Table of Contents
-----------------
Section 1 - Errors
Section 2 - Warnings
Section 3 - Informational
Section 4 - Removed Logic Summary
Section 5 - Removed Logic
Section 6 - IOB Properties
Section 7 - RPMs
Section 8 - Guide Report
Section 9 - Area Group and Partition Summary
Section 10 - Modular Design Summary
Section 11 - Timing Report
Section 12 - Configuration String Information
Section 1 - Errors
------------------
Section 2 - Warnings
--------------------
WARNING:LIT:176 - Clock buffer is designated to drive clock loads. BUFG symbol
"gray_cnt_FFd1_BUFG" (output signal=gray_cnt_FFd1) has a mix of clock and
non-clock loads. The non-clock loads are:
Pin D of gray_cnt_FFd2
WARNING:LIT:176 - Clock buffer is designated to drive clock loads. BUFG symbol
"vga/crtclk_BUFG" (output signal=vga/crtclk) has a mix of clock and non-clock
loads. The non-clock loads are:
Pin D of vga/crtclk
WARNING:Pack:249 - The following adjacent carry multiplexers occupy different
slice components. The resulting carry chain will have suboptimal timing.
vga/crt/Madd_ram_addr_Madd_cy<7>
vga/crt/Madd_ram_addr_Madd_cy<8>
WARNING:Pack:249 - The following adjacent carry multiplexers occupy different
slice components. The resulting carry chain will have suboptimal timing.
vga/Madd_ram_addr_video_Madd_cy<7>
vga/Madd_ram_addr_video_Madd_cy<8>
WARNING:Pack:249 - The following adjacent carry multiplexers occupy different
slice components. The resulting carry chain will have suboptimal timing.
vga/vgacore/Mcount_hcnt_cy<0>
vga/vgacore/Mcount_hcnt_cy<1>
WARNING:Pack:249 - The following adjacent carry multiplexers occupy different
slice components. The resulting carry chain will have suboptimal timing.
vga/vgacore/Mcount_vcnt_cy<0>
vga/vgacore/Mcount_vcnt_cy<1>
WARNING:PhysDesignRules:372 - Gated clock. Clock net vga/crt/_or0000 is sourced
by a combinatorial pin. This is not good design practice. Use the CE pin to
control the loading of data into the flip-flop.
Section 3 - Informational
-------------------------
INFO:MapLib:562 - No environment variables are currently set.
INFO:LIT:244 - All of the single ended outputs in this design are using slew
rate limited output drivers. The delay on speed critical single ended outputs
can be dramatically reduced by designating them as fast outputs in the
schematic.
Section 4 - Removed Logic Summary
---------------------------------
2 block(s) optimized away
Section 5 - Removed Logic
-------------------------
Optimized Block(s):
TYPE BLOCK
GND XST_GND
VCC XST_VCC
To enable printing of redundant blocks removed and signals merged, set the
detailed map report option and rerun map.
Section 6 - IOB Properties
--------------------------
+------------------------------------------------------------------------------------------------------------------------+
| IOB Name | Type | Direction | IO Standard | Drive | Slew | Reg (s) | Resistor | IOB |
| | | | | Strength | Rate | | | Delay |
+------------------------------------------------------------------------------------------------------------------------+
| clka | GCLKIOB | INPUT | LVTTL | | | | | |
| fpga_d1 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| fpga_d2 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| fpga_d3 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| fpga_d4 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| fpga_d5 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| fpga_d6 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| fpga_d7 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| fpga_din_d0 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| ps2_clk | IOB | INPUT | LVTTL | | | INFF | | IFD |
| ps2_data | IOB | INPUT | LVTTL | | | INFF | | IFD |
| reset_n | IOB | INPUT | LVTTL | | | | | |
| vga_blue0 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_blue1 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_blue2 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_green0 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_green1 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_green2 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_hsync_n | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_red0 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_red1 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_red2 | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
| vga_vsync_n | IOB | OUTPUT | LVTTL | 12 | SLOW | | | |
+------------------------------------------------------------------------------------------------------------------------+
Section 7 - RPMs
----------------
Section 8 - Guide Report
------------------------
Guide not run on this design.
Section 9 - Area Group and Partition Summary
--------------------------------------------
Partition Implementation Status
-------------------------------
No Partitions were found in this design.
-------------------------------
Area Group Information
----------------------
No area groups were found in this design.
----------------------
Section 10 - Modular Design Summary
-----------------------------------
Modular Design not used for this design.
Section 11 - Timing Report
--------------------------
No timing report for this architecture.
Section 12 - Configuration String Details
-----------------------------------------
Use the "-detail" map option to print out Configuration Strings