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VERSION 6
BEGIN SCHEMATIC
BEGIN ATTR DeviceFamilyName "virtex2"
DELETE all:0
EDITNAME all:0
EDITTRAIT all:0
END ATTR
BEGIN NETLIST
SIGNAL "ce"
SIGNAL "clk"
SIGNAL "XLXN_3"
SIGNAL "XLXN_5"
SIGNAL "XLXN_6"
SIGNAL "XLXN_8"
SIGNAL "XLXN_9"
SIGNAL "XLXN_11"
SIGNAL "XLXN_12"
SIGNAL "XLXN_13"
SIGNAL "XLXN_14"
SIGNAL "XLXN_15"
SIGNAL "XLXN_16"
SIGNAL "XLXN_19"
SIGNAL "XLXN_21"
SIGNAL "XLXN_22"
SIGNAL "XLXN_24"
SIGNAL "XLXN_26"
SIGNAL "XLXN_27"
SIGNAL "clr"
SIGNAL "XLXN_29"
SIGNAL "XLXN_32"
SIGNAL "XLXN_33"
SIGNAL "XLXN_34"
SIGNAL "XLXN_35"
SIGNAL "XLXN_36"
SIGNAL "lsbsec(3:0)"
SIGNAL "msbsec(3:0)"
SIGNAL "lsbsec(3)"
SIGNAL "lsbsec(2)"
SIGNAL "lsbsec(1)"
SIGNAL "lsbsec(0)"
SIGNAL "msbsec(0)"
SIGNAL "msbsec(1)"
SIGNAL "msbsec(2)"
SIGNAL "msbsec(3)"
SIGNAL "XLXN_57"
SIGNAL "XLXN_61"
SIGNAL "XLXN_63"
SIGNAL "XLXN_64"
SIGNAL "XLXN_65"
SIGNAL "XLXN_68"
PORT Input "ce"
PORT Input "clk"
PORT Input "clr"
PORT Output "lsbsec(3:0)"
PORT Output "msbsec(3:0)"
BEGIN BLOCKDEF "and2"
TIMESTAMP 2001 2 2 12 38 38
LINE N 0 -64 64 -64
LINE N 0 -128 64 -128
LINE N 256 -96 192 -96
ARC N 96 -144 192 -48 144 -48 144 -144
LINE N 144 -48 64 -48
LINE N 64 -144 144 -144
LINE N 64 -48 64 -144
END BLOCKDEF
BEGIN BLOCKDEF "cd4ce"
TIMESTAMP 2001 2 2 12 36 39
LINE N 384 -192 320 -192
RECTANGLE N 64 -512 320 -64
LINE N 80 -128 64 -144
LINE N 64 -112 80 -128
LINE N 192 -32 64 -32
LINE N 192 -64 192 -32
LINE N 384 -128 320 -128
LINE N 384 -256 320 -256
LINE N 384 -320 320 -320
LINE N 384 -384 320 -384
LINE N 384 -448 320 -448
LINE N 0 -32 64 -32
LINE N 0 -192 64 -192
LINE N 0 -128 64 -128
END BLOCKDEF
BEGIN BLOCKDEF "cb4ce"
TIMESTAMP 2001 2 2 12 36 39
RECTANGLE N 64 -512 320 -64
LINE N 0 -32 64 -32
LINE N 0 -128 64 -128
LINE N 384 -256 320 -256
LINE N 384 -320 320 -320
LINE N 384 -384 320 -384
LINE N 384 -448 320 -448
LINE N 80 -128 64 -144
LINE N 64 -112 80 -128
LINE N 384 -128 320 -128
LINE N 192 -32 64 -32
LINE N 192 -64 192 -32
LINE N 0 -192 64 -192
LINE N 384 -192 320 -192
END BLOCKDEF
BEGIN BLOCKDEF "or2"
TIMESTAMP 2001 2 2 12 38 38
LINE N 0 -64 64 -64
LINE N 0 -128 64 -128
LINE N 256 -96 192 -96
ARC N 28 -224 204 -48 112 -48 192 -96
ARC N -40 -152 72 -40 48 -48 48 -144
LINE N 112 -144 48 -144
ARC N 28 -144 204 32 192 -96 112 -144
LINE N 112 -48 48 -48
END BLOCKDEF
BEGIN BLOCKDEF "inv"
TIMESTAMP 2001 2 2 12 38 38
LINE N 0 -32 64 -32
LINE N 224 -32 160 -32
LINE N 64 -64 128 -32
LINE N 128 -32 64 0
LINE N 64 0 64 -64
CIRCLE N 128 -48 160 -16
END BLOCKDEF
BEGIN BLOCKDEF "and4"
TIMESTAMP 2001 2 2 12 38 38
LINE N 144 -112 64 -112
ARC N 96 -208 192 -112 144 -112 144 -208
LINE N 64 -208 144 -208
LINE N 64 -64 64 -256
LINE N 256 -160 192 -160
LINE N 0 -256 64 -256
LINE N 0 -192 64 -192
LINE N 0 -128 64 -128
LINE N 0 -64 64 -64
END BLOCKDEF
BEGIN BLOCK "XLXI_1" "and2"
PIN "I0" "XLXN_24"
PIN "I1" "XLXN_27"
PIN "O" "XLXN_26"
END BLOCK
BEGIN BLOCK "XLXI_2" "cd4ce"
PIN "C" "clk"
PIN "CE" "ce"
PIN "CLR" "clr"
PIN "CEO"
PIN "Q0" "lsbsec(0)"
PIN "Q1" "lsbsec(1)"
PIN "Q2" "lsbsec(2)"
PIN "Q3" "lsbsec(3)"
PIN "TC" "XLXN_8"
END BLOCK
BEGIN BLOCK "XLXI_3" "cb4ce"
PIN "C" "clk"
PIN "CE" "XLXN_27"
PIN "CLR" "XLXN_9"
PIN "CEO"
PIN "Q0" "msbsec(0)"
PIN "Q1" "msbsec(1)"
PIN "Q2" "msbsec(2)"
PIN "Q3" "msbsec(3)"
PIN "TC"
END BLOCK
BEGIN BLOCK "XLXI_4" "or2"
PIN "I0" "XLXN_26"
PIN "I1" "clr"
PIN "O" "XLXN_9"
END BLOCK
BEGIN BLOCK "XLXI_5" "inv"
PIN "I" "msbsec(1)"
PIN "O" "XLXN_16"
END BLOCK
BEGIN BLOCK "XLXI_6" "and4"
PIN "I0" "XLXN_15"
PIN "I1" "msbsec(2)"
PIN "I2" "XLXN_16"
PIN "I3" "msbsec(0)"
PIN "O" "XLXN_24"
END BLOCK
BEGIN BLOCK "XLXI_7" "and2"
PIN "I0" "ce"
PIN "I1" "XLXN_8"
PIN "O" "XLXN_27"
END BLOCK
BEGIN BLOCK "XLXI_8" "inv"
PIN "I" "msbsec(3)"
PIN "O" "XLXN_15"
END BLOCK
END NETLIST
BEGIN SHEET 1 3520 2720
INSTANCE "XLXI_2" 960 1056 R0
INSTANCE "XLXI_3" 1424 2112 R0
INSTANCE "XLXI_1" 560 2400 R0
BEGIN BRANCH "ce"
WIRE 480 864 640 864
WIRE 640 864 960 864
WIRE 640 864 640 1312
WIRE 640 1312 832 1312
END BRANCH
INSTANCE "XLXI_7" 832 1376 R0
BEGIN BRANCH "XLXN_8"
WIRE 752 1200 752 1248
WIRE 752 1248 832 1248
WIRE 752 1200 1360 1200
WIRE 1344 928 1360 928
WIRE 1360 928 1360 1200
END BRANCH
INSTANCE "XLXI_4" 960 2176 R0
BEGIN BRANCH "XLXN_9"
WIRE 1216 2080 1424 2080
END BRANCH
BEGIN BRANCH "XLXN_24"
WIRE 544 2336 560 2336
WIRE 544 2336 544 2448
WIRE 544 2448 2864 2448
WIRE 2784 1424 2864 1424
WIRE 2864 1424 2864 2448
END BRANCH
BEGIN BRANCH "XLXN_26"
WIRE 816 2304 864 2304
WIRE 864 2112 960 2112
WIRE 864 2112 864 2304
END BRANCH
BEGIN BRANCH "XLXN_27"
WIRE 336 1920 336 2272
WIRE 336 2272 560 2272
WIRE 336 1920 1136 1920
WIRE 1136 1920 1424 1920
WIRE 1088 1280 1136 1280
WIRE 1136 1280 1136 1920
END BRANCH
BEGIN BRANCH "clr"
WIRE 192 2048 240 2048
WIRE 240 2048 960 2048
WIRE 240 1024 240 2048
WIRE 240 1024 960 1024
END BRANCH
BEGIN BRANCH "clk"
WIRE 480 928 560 928
WIRE 560 928 960 928
WIRE 560 928 560 1984
WIRE 560 1984 1424 1984
END BRANCH
IOMARKER 480 864 "ce" R180 28
IOMARKER 480 928 "clk" R180 28
IOMARKER 192 2048 "clr" R180 28
BEGIN BRANCH "lsbsec(3:0)"
WIRE 1616 480 1616 608
WIRE 1616 608 1616 672
WIRE 1616 672 1616 736
WIRE 1616 736 1616 800
WIRE 1616 800 1616 832
WIRE 1616 832 1824 832
WIRE 1824 832 2096 832
BEGIN DISPLAY 1824 832 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
BEGIN BRANCH "msbsec(3:0)"
WIRE 2000 1600 2000 1664
WIRE 2000 1664 2000 1728
WIRE 2000 1728 2000 1792
WIRE 2000 1792 2000 1856
WIRE 2000 1856 2000 1920
WIRE 2000 1920 2144 1920
WIRE 2144 1920 2320 1920
BEGIN DISPLAY 2144 1920 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
BUSTAP 1616 608 1520 608
BUSTAP 1616 672 1520 672
BUSTAP 1616 736 1520 736
BUSTAP 1616 800 1520 800
BEGIN BRANCH "lsbsec(3)"
WIRE 1344 800 1488 800
WIRE 1488 800 1520 800
BEGIN DISPLAY 1488 800 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
BEGIN BRANCH "lsbsec(2)"
WIRE 1344 736 1488 736
WIRE 1488 736 1520 736
BEGIN DISPLAY 1488 736 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
BEGIN BRANCH "lsbsec(1)"
WIRE 1344 672 1488 672
WIRE 1488 672 1520 672
BEGIN DISPLAY 1488 672 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
BEGIN BRANCH "lsbsec(0)"
WIRE 1344 608 1488 608
WIRE 1488 608 1520 608
BEGIN DISPLAY 1488 608 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
BUSTAP 2000 1664 1904 1664
BUSTAP 2000 1728 1904 1728
BUSTAP 2000 1792 1904 1792
BUSTAP 2000 1856 1904 1856
BEGIN BRANCH "msbsec(0)"
WIRE 1808 1664 1824 1664
WIRE 1824 1664 1888 1664
WIRE 1888 1664 1904 1664
WIRE 1824 1328 2528 1328
WIRE 1824 1328 1824 1664
BEGIN DISPLAY 1888 1664 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
BEGIN BRANCH "msbsec(1)"
WIRE 1808 1728 1840 1728
WIRE 1840 1728 1888 1728
WIRE 1888 1728 1904 1728
WIRE 1840 1392 1840 1728
WIRE 1840 1392 2128 1392
BEGIN DISPLAY 1888 1728 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
BEGIN BRANCH "msbsec(2)"
WIRE 1808 1792 1856 1792
WIRE 1856 1792 1888 1792
WIRE 1888 1792 1904 1792
WIRE 1856 1456 1856 1792
WIRE 1856 1456 2528 1456
BEGIN DISPLAY 1888 1792 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
BEGIN BRANCH "msbsec(3)"
WIRE 1808 1856 1872 1856
WIRE 1872 1856 1888 1856
WIRE 1888 1856 1904 1856
WIRE 1872 1520 2096 1520
WIRE 2096 1520 2128 1520
WIRE 1872 1520 1872 1856
BEGIN DISPLAY 1888 1856 ATTR "Name"
ALIGNMENT SOFT-BCENTER
END DISPLAY
END BRANCH
INSTANCE "XLXI_6" 2528 1584 R0
BEGIN BRANCH "XLXN_16"
WIRE 2352 1392 2528 1392
END BRANCH
INSTANCE "XLXI_5" 2128 1424 R0
BEGIN BRANCH "XLXN_15"
WIRE 2352 1520 2528 1520
END BRANCH
INSTANCE "XLXI_8" 2128 1552 R0
IOMARKER 2096 832 "lsbsec(3:0)" R0 28
IOMARKER 2320 1920 "msbsec(3:0)" R0 28
END SHEET
END SCHEMATIC
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