shift.bsf

很多仪器都输出同步时钟

/*
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 "symbol" (version "1.1"))
(symbol
	(rect 0 0 184 112)
	(text "shift" (rect 80 1 108 17)(font "Arial" (font_size 10)))
	(text "inst" (rect 8 96 25 108)(font "Arial" ))
	(port
		(pt 0 40)
		(input)
		(text "shiftin[95..0]" (rect 0 0 69 14)(font "Arial" (font_size 8)))
		(text "shiftin[95..0]" (rect 20 34 78 47)(font "Arial" (font_size 8)))
		(line (pt 0 40)(pt 16 40)(line_width 3))
	)
	(port
		(pt 0 56)
		(input)
		(text "clock" (rect 0 0 29 14)(font "Arial" (font_size 8)))
		(text "clock" (rect 20 50 43 63)(font "Arial" (font_size 8)))
		(line (pt 0 56)(pt 16 56)(line_width 1))
	)
	(port
		(pt 184 40)
		(output)
		(text "shiftout[95..0]" (rect 0 0 77 14)(font "Arial" (font_size 8)))
		(text "shiftout[95..0]" (rect 99 34 163 47)(font "Arial" (font_size 8)))
		(line (pt 184 40)(pt 168 40)(line_width 3))
	)
	(port
		(pt 184 56)
		(output)
		(text "taps[95..0]" (rect 0 0 60 14)(font "Arial" (font_size 8)))
		(text "taps[95..0]" (rect 114 50 163 63)(font "Arial" (font_size 8)))
		(line (pt 184 56)(pt 168 56)(line_width 3))
	)
	(drawing
		(text "altshift_taps" (rect 63 18 119 31)(font "Arial" (font_size 8)))
		(text "Number of taps 1" (rect 19 74 93 86)(font "Arial" ))
		(text "Tap distance 16" (rect 19 84 85 96)(font "Arial" ))
		(line (pt 16 16)(pt 168 16)(line_width 1))
		(line (pt 168 16)(pt 168 96)(line_width 1))
		(line (pt 168 96)(pt 16 96)(line_width 1))
		(line (pt 16 96)(pt 16 16)(line_width 1))
	)
)