div4limit.bsf

来自「基于VHDL语言的一个FFT快速傅里叶变换程序。采用4蝶形算法」· BSF 代码 · 共 71 行

/*
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) 1991-2007 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 from 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 "symbol" (version "1.1"))
(symbol
	(rect 16 16 280 112)
	(text "div4limit" (rect 5 0 46 12)(font "Arial" ))
	(text "inst" (rect 8 80 25 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clk8x" (rect 0 0 25 12)(font "Arial" ))
		(text "clk8x" (rect 21 27 46 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "data_in[2*WIDTH..0]" (rect 0 0 102 12)(font "Arial" ))
		(text "data_in[2*WIDTH..0]" (rect 21 43 123 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 3))
	)
	(port
		(pt 0 64)
		(input)
		(text "invert" (rect 0 0 28 12)(font "Arial" ))
		(text "invert" (rect 21 59 49 71)(font "Arial" ))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 264 32)
		(output)
		(text "data_out[WIDTH-1..0]" (rect 0 0 108 12)(font "Arial" ))
		(text "data_out[WIDTH-1..0]" (rect 135 27 243 39)(font "Arial" ))
		(line (pt 264 32)(pt 248 32)(line_width 3))
	)
	(port
		(pt 264 48)
		(output)
		(text "overflow" (rect 0 0 42 12)(font "Arial" ))
		(text "overflow" (rect 201 43 243 55)(font "Arial" ))
		(line (pt 264 48)(pt 248 48)(line_width 1))
	)
	(parameter
		"WIDTH"
		"16"
		""
	)
	(drawing
		(rectangle (rect 16 16 248 80)(line_width 1))
	)
	(annotation_block (parameter)(rect 280 -64 380 16))
)