mux_ecc.tdf

用vhdl语言编写的基于FPGA的波形发生器。对于做实验需要产生的波形非常有用。

--lpm_mux CASCADE_CHAIN="IGNORE" DEVICE_FAMILY="Cyclone" IGNORE_CASCADE_BUFFERS="ON" LPM_SIZE=4 LPM_WIDTH=1 LPM_WIDTHS=2 data result sel
--VERSION_BEGIN 5.1 cbx_lpm_mux 2005:12:13:16:24:06:SJ cbx_mgl 2006:01:12:16:15:18:SJ  VERSION_END


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--synthesis_resources = lut 2 
SUBDESIGN mux_ecc
( 
	data[3..0]	:	input;
	result[0..0]	:	output;
	sel[1..0]	:	input;
) 
VARIABLE 
	result_node[0..0]	: WIRE;
	sel_node[1..0]	: WIRE;
	w_data4w[3..0]	: WIRE;
	w_result19w	: WIRE;

BEGIN 
	result[] = result_node[];
	result_node[] = ( (((w_data4w[1..1] & sel_node[0..0]) & (! w_result19w)) # (w_result19w & (w_data4w[3..3] # (! sel_node[0..0])))));
	sel_node[] = ( sel[1..0]);
	w_data4w[] = ( data[3..0]);
	w_result19w = (((w_data4w[0..0] & (! sel_node[1..1])) & (! sel_node[0..0])) # (sel_node[1..1] & (sel_node[0..0] # w_data4w[2..2])));
END;
--VALID FILE