clock.bdf

简易数字钟： 采用分成次设计

/*
WARNING: Do NOT edit the input and output ports in this file in a text
editor if you plan to continue editing the block that represents it in
the Block Editor! File corruption is VERY likely to occur.
*/
/*
Copyright (C) 1991-2005 Altera Corporation
Your use of Altera Corporation's design tools, logic functions 
and other software and tools, and its AMPP partner logic       
functions, and any output files any of the foregoing           
(including device programming or simulation files), and any    
associated documentation or information are expressly subject  
to the terms and conditions of the Altera Program License      
Subscription Agreement, Altera MegaCore Function License       
Agreement, or other applicable license agreement, including,   
without limitation, that your use is for the sole purpose of   
programming logic devices manufactured by Altera and sold by   
Altera or its authorized distributors.  Please refer to the    
applicable agreement for further details.
*/
(header "graphic" (version "1.3"))
(pin
	(input)
	(rect 40 40 208 56)
	(text "INPUT" (rect 133 0 169 13)(font "Arial" (font_size 6)))
	(text "ENT" (rect 5 0 33 15)(font "Arial" ))
	(pt 168 8)
	(drawing
		(line (pt 92 12)(pt 117 12)(line_width 1))
		(line (pt 92 4)(pt 117 4)(line_width 1))
		(line (pt 121 8)(pt 168 8)(line_width 1))
		(line (pt 92 12)(pt 92 4)(line_width 1))
		(line (pt 117 4)(pt 121 8)(line_width 1))
		(line (pt 117 12)(pt 121 8)(line_width 1))
	)
	(text "VCC" (rect 136 7 160 20)(font "Arial" (font_size 6)))
	(annotation_block (location)(rect -64 32 40 72))
)
(pin
	(input)
	(rect 40 72 208 88)
	(text "INPUT" (rect 133 0 169 13)(font "Arial" (font_size 6)))
	(text "CLK" (rect 5 0 33 15)(font "Arial" ))
	(pt 168 8)
	(drawing
		(line (pt 92 12)(pt 117 12)(line_width 1))
		(line (pt 92 4)(pt 117 4)(line_width 1))
		(line (pt 121 8)(pt 168 8)(line_width 1))
		(line (pt 92 12)(pt 92 4)(line_width 1))
		(line (pt 117 4)(pt 121 8)(line_width 1))
		(line (pt 117 12)(pt 121 8)(line_width 1))
	)
	(text "VCC" (rect 136 7 160 20)(font "Arial" (font_size 6)))
	(annotation_block (location)(rect -64 96 40 136))
)
(pin
	(input)
	(rect 40 56 208 72)
	(text "INPUT" (rect 133 0 169 13)(font "Arial" (font_size 6)))
	(text "ENP" (rect 5 0 34 15)(font "Arial" ))
	(pt 168 8)
	(drawing
		(line (pt 92 12)(pt 117 12)(line_width 1))
		(line (pt 92 4)(pt 117 4)(line_width 1))
		(line (pt 121 8)(pt 168 8)(line_width 1))
		(line (pt 92 12)(pt 92 4)(line_width 1))
		(line (pt 117 4)(pt 121 8)(line_width 1))
		(line (pt 117 12)(pt 121 8)(line_width 1))
	)
	(text "VCC" (rect 136 7 160 20)(font "Arial" (font_size 6)))
	(annotation_block (location)(rect -64 72 40 112))
)
(pin
	(output)
	(rect 536 40 712 56)
	(text "OUTPUT" (rect 1 0 51 13)(font "Arial" (font_size 6)))
	(text "QSL[3..0]" (rect 90 0 149 15)(font "Arial" ))
	(pt 0 8)
	(drawing
		(line (pt 0 8)(pt 52 8)(line_width 1))
		(line (pt 52 4)(pt 78 4)(line_width 1))
		(line (pt 52 12)(pt 78 12)(line_width 1))
		(line (pt 52 12)(pt 52 4)(line_width 1))
		(line (pt 78 4)(pt 82 8)(line_width 1))
		(line (pt 82 8)(pt 78 12)(line_width 1))
		(line (pt 78 12)(pt 82 8)(line_width 1))
	)
	(annotation_block (location)(rect 712 56 816 136))
)
(pin
	(output)
	(rect 536 56 712 72)
	(text "OUTPUT" (rect 1 0 51 13)(font "Arial" (font_size 6)))
	(text "QSH[3..0]" (rect 90 0 151 15)(font "Arial" ))
	(pt 0 8)
	(drawing
		(line (pt 0 8)(pt 52 8)(line_width 1))
		(line (pt 52 4)(pt 78 4)(line_width 1))
		(line (pt 52 12)(pt 78 12)(line_width 1))
		(line (pt 52 12)(pt 52 4)(line_width 1))
		(line (pt 78 4)(pt 82 8)(line_width 1))
		(line (pt 82 8)(pt 78 12)(line_width 1))
		(line (pt 78 12)(pt 82 8)(line_width 1))
	)
	(annotation_block (location)(rect 712 72 816 152))
)
(pin
	(output)
	(rect 536 200 712 216)
	(text "OUTPUT" (rect 1 0 51 13)(font "Arial" (font_size 6)))
	(text "QML[3..0]" (rect 90 0 150 15)(font "Arial" ))
	(pt 0 8)
	(drawing
		(line (pt 0 8)(pt 52 8)(line_width 1))
		(line (pt 52 4)(pt 78 4)(line_width 1))
		(line (pt 52 12)(pt 78 12)(line_width 1))
		(line (pt 52 12)(pt 52 4)(line_width 1))
		(line (pt 78 4)(pt 82 8)(line_width 1))
		(line (pt 82 8)(pt 78 12)(line_width 1))
		(line (pt 78 12)(pt 82 8)(line_width 1))
	)
	(annotation_block (location)(rect 712 216 816 296))
)
(pin
	(output)
	(rect 536 216 712 232)
	(text "OUTPUT" (rect 1 0 51 13)(font "Arial" (font_size 6)))
	(text "QMH[3..0]" (rect 90 0 152 15)(font "Arial" ))
	(pt 0 8)
	(drawing
		(line (pt 0 8)(pt 52 8)(line_width 1))
		(line (pt 52 4)(pt 78 4)(line_width 1))
		(line (pt 52 12)(pt 78 12)(line_width 1))
		(line (pt 52 12)(pt 52 4)(line_width 1))
		(line (pt 78 4)(pt 82 8)(line_width 1))
		(line (pt 82 8)(pt 78 12)(line_width 1))
		(line (pt 78 12)(pt 82 8)(line_width 1))
	)
	(annotation_block (location)(rect 712 232 816 312))
)
(pin
	(output)
	(rect 536 360 712 376)
	(text "OUTPUT" (rect 1 0 51 13)(font "Arial" (font_size 6)))
	(text "QHL[3..0]" (rect 90 0 150 15)(font "Arial" ))
	(pt 0 8)
	(drawing
		(line (pt 0 8)(pt 52 8)(line_width 1))
		(line (pt 52 4)(pt 78 4)(line_width 1))
		(line (pt 52 12)(pt 78 12)(line_width 1))
		(line (pt 52 12)(pt 52 4)(line_width 1))
		(line (pt 78 4)(pt 82 8)(line_width 1))
		(line (pt 82 8)(pt 78 12)(line_width 1))
		(line (pt 78 12)(pt 82 8)(line_width 1))
	)
	(annotation_block (location)(rect 712 376 816 456))
)
(pin
	(output)
	(rect 536 376 713 392)
	(text "OUTPUT" (rect 1 0 51 13)(font "Arial" (font_size 6)))
	(text "QHH[3..0]" (rect 90 0 152 15)(font "Arial" ))
	(pt 0 8)
	(drawing
		(line (pt 0 8)(pt 52 8)(line_width 1))
		(line (pt 52 4)(pt 78 4)(line_width 1))
		(line (pt 52 12)(pt 78 12)(line_width 1))
		(line (pt 52 12)(pt 52 4)(line_width 1))
		(line (pt 78 4)(pt 82 8)(line_width 1))
		(line (pt 82 8)(pt 78 12)(line_width 1))
		(line (pt 78 12)(pt 82 8)(line_width 1))
	)
	(annotation_block (location)(rect 712 392 816 472))
)
(pin
	(output)
	(rect 536 392 713 408)
	(text "OUTPUT" (rect 1 0 51 13)(font "Arial" (font_size 6)))
	(text "RCO" (rect 90 0 121 15)(font "Arial" ))
	(pt 0 8)
	(drawing
		(line (pt 0 8)(pt 52 8)(line_width 1))
		(line (pt 52 4)(pt 78 4)(line_width 1))
		(line (pt 52 12)(pt 78 12)(line_width 1))
		(line (pt 52 12)(pt 52 4)(line_width 1))
		(line (pt 78 4)(pt 82 8)(line_width 1))
		(line (pt 82 8)(pt 78 12)(line_width 1))
		(line (pt 78 12)(pt 82 8)(line_width 1))
	)
	(annotation_block (location)(rect 713 408 817 448))
)
(symbol
	(rect 312 16 456 112)
	(text "counter60" (rect 5 0 72 16)(font "Arial" (font_size 8)))
	(text "inst" (rect 8 77 31 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "ENT" (rect 0 0 29 16)(font "Arial" (font_size 8)))
		(text "ENT" (rect 21 27 50 43)(font "Arial" (font_size 8)))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "ENP" (rect 0 0 31 16)(font "Arial" (font_size 8)))
		(text "ENP" (rect 21 43 52 59)(font "Arial" (font_size 8)))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "CLK" (rect 0 0 29 16)(font "Arial" (font_size 8)))
		(text "CLK" (rect 21 59 50 75)(font "Arial" (font_size 8)))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 144 32)
		(output)
		(text "QL[3..0]" (rect 0 0 55 16)(font "Arial" (font_size 8)))
		(text "QL[3..0]" (rect 68 27 123 43)(font "Arial" (font_size 8)))
		(line (pt 144 32)(pt 128 32)(line_width 3))
	)
	(port
		(pt 144 48)
		(output)
		(text "QH[3..0]" (rect 0 0 57 16)(font "Arial" (font_size 8)))
		(text "QH[3..0]" (rect 66 43 123 59)(font "Arial" (font_size 8)))
		(line (pt 144 48)(pt 128 48)(line_width 3))
	)
	(port
		(pt 144 64)
		(output)
		(text "RCO" (rect 0 0 33 16)(font "Arial" (font_size 8)))
		(text "RCO" (rect 90 59 123 75)(font "Arial" (font_size 8)))
		(line (pt 144 64)(pt 128 64)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 128 80)(line_width 1))
	)
)
(symbol
	(rect 312 176 456 272)
	(text "counter60" (rect 5 0 72 16)(font "Arial" (font_size 8)))
	(text "inst1" (rect 8 77 39 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "ENT" (rect 0 0 29 16)(font "Arial" (font_size 8)))
		(text "ENT" (rect 21 27 50 43)(font "Arial" (font_size 8)))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "ENP" (rect 0 0 31 16)(font "Arial" (font_size 8)))
		(text "ENP" (rect 21 43 52 59)(font "Arial" (font_size 8)))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "CLK" (rect 0 0 29 16)(font "Arial" (font_size 8)))
		(text "CLK" (rect 21 59 50 75)(font "Arial" (font_size 8)))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 144 32)
		(output)
		(text "QL[3..0]" (rect 0 0 55 16)(font "Arial" (font_size 8)))
		(text "QL[3..0]" (rect 68 27 123 43)(font "Arial" (font_size 8)))
		(line (pt 144 32)(pt 128 32)(line_width 3))
	)
	(port
		(pt 144 48)
		(output)
		(text "QH[3..0]" (rect 0 0 57 16)(font "Arial" (font_size 8)))
		(text "QH[3..0]" (rect 66 43 123 59)(font "Arial" (font_size 8)))
		(line (pt 144 48)(pt 128 48)(line_width 3))
	)
	(port
		(pt 144 64)
		(output)
		(text "RCO" (rect 0 0 33 16)(font "Arial" (font_size 8)))
		(text "RCO" (rect 90 59 123 75)(font "Arial" (font_size 8)))
		(line (pt 144 64)(pt 128 64)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 128 80)(line_width 1))
	)
)
(symbol
	(rect 312 336 456 432)
	(text "counter24" (rect 5 0 72 16)(font "Arial" (font_size 8)))
	(text "inst2" (rect 8 77 39 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "ENT" (rect 0 0 29 16)(font "Arial" (font_size 8)))
		(text "ENT" (rect 21 27 50 43)(font "Arial" (font_size 8)))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "ENP" (rect 0 0 31 16)(font "Arial" (font_size 8)))
		(text "ENP" (rect 21 43 52 59)(font "Arial" (font_size 8)))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "CLK" (rect 0 0 29 16)(font "Arial" (font_size 8)))
		(text "CLK" (rect 21 59 50 75)(font "Arial" (font_size 8)))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 144 32)
		(output)
		(text "QL[3..0]" (rect 0 0 55 16)(font "Arial" (font_size 8)))
		(text "QL[3..0]" (rect 68 27 123 43)(font "Arial" (font_size 8)))
		(line (pt 144 32)(pt 128 32)(line_width 3))
	)
	(port
		(pt 144 48)
		(output)
		(text "QH[3..0]" (rect 0 0 57 16)(font "Arial" (font_size 8)))
		(text "QH[3..0]" (rect 66 43 123 59)(font "Arial" (font_size 8)))
		(line (pt 144 48)(pt 128 48)(line_width 3))
	)
	(port
		(pt 144 64)
		(output)
		(text "RCO" (rect 0 0 33 16)(font "Arial" (font_size 8)))
		(text "RCO" (rect 90 59 123 75)(font "Arial" (font_size 8)))
		(line (pt 144 64)(pt 128 64)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 128 80)(line_width 1))
	)
)
(connector
	(pt 456 48)
	(pt 536 48)
	(bus)
)
(connector
	(pt 456 64)
	(pt 536 64)
	(bus)
)
(connector
	(pt 456 80)
	(pt 488 80)
)
(connector
	(pt 488 80)
	(pt 488 136)
)
(connector
	(pt 488 136)
	(pt 280 136)
)
(connector
	(pt 280 136)
	(pt 280 208)
)
(connector
	(pt 280 208)
	(pt 312 208)
)
(connector
	(pt 456 240)
	(pt 488 240)
)
(connector
	(pt 488 304)
	(pt 488 240)
)
(connector
	(pt 488 304)
	(pt 280 304)
)
(connector
	(pt 280 304)
	(pt 280 368)
)
(connector
	(pt 280 368)
	(pt 312 368)
)
(connector
	(pt 208 48)
	(pt 312 48)
)
(connector
	(pt 312 240)
	(pt 232 240)
)
(connector
	(pt 208 64)
	(pt 256 64)
)
(connector
	(pt 256 64)
	(pt 312 64)
)
(connector
	(pt 312 384)
	(pt 256 384)
)
(connector
	(pt 256 224)
	(pt 312 224)
)
(connector
	(pt 256 64)
	(pt 256 224)
)
(connector
	(pt 256 224)
	(pt 256 384)
)
(connector
	(pt 208 80)
	(pt 232 80)
)
(connector
	(pt 232 80)
	(pt 312 80)
)
(connector
	(pt 312 400)
	(pt 232 400)
)
(connector
	(pt 232 80)
	(pt 232 240)
)
(connector
	(pt 232 240)
	(pt 232 400)
)
(connector
	(pt 456 208)
	(pt 536 208)
	(bus)
)
(connector
	(pt 456 224)
	(pt 536 224)
	(bus)
)
(connector
	(pt 456 368)
	(pt 536 368)
	(bus)
)
(connector
	(pt 456 384)
	(pt 536 384)
	(bus)
)
(connector
	(pt 456 400)
	(pt 536 400)
)
(junction (pt 256 64))
(junction (pt 256 224))
(junction (pt 232 80))
(junction (pt 232 240))