a_graycounter_2r6.tdf

多功能卡的源代码

--a_graycounter DEVICE_FAMILY="Cyclone" PVALUE=1 WIDTH=11 aclr clock cnt_en q
--VERSION_BEGIN 8.0 cbx_a_gray2bin 2008:02:23:252825 cbx_a_graycounter 2008:02:23:252825 cbx_cycloneii 2008:02:23:252825 cbx_flex10ke 2008:02:23:252825 cbx_mgl 2008:04:11:273944 cbx_stratix 2008:02:23:252825 cbx_stratixii 2008:02:23:252825  VERSION_END


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--synthesis_resources = lut 12 
OPTIONS ALTERA_INTERNAL_OPTION = "{-to counter5a0} POWER_UP_LEVEL=HIGH;{-to parity6} POWER_UP_LEVEL=HIGH";

SUBDESIGN a_graycounter_2r6
( 
	aclr	:	input;
	clock	:	input;
	cnt_en	:	input;
	q[10..0]	:	output;
) 
VARIABLE 
	counter5a0 : dffeas
		WITH (
			power_up = "high"
		);
	counter5a1 : dffeas;
	counter5a2 : dffeas;
	counter5a3 : dffeas;
	counter5a4 : dffeas;
	counter5a5 : dffeas;
	counter5a6 : dffeas;
	counter5a7 : dffeas;
	counter5a8 : dffeas;
	counter5a9 : dffeas;
	counter5a10 : dffeas;
	parity6 : dffeas
		WITH (
			power_up = "high"
		);
	counter_cout[10..0]	: WIRE;
	parity_cout	: WIRE;
	sclr	: NODE;
	updown	: NODE;

BEGIN 
	counter5a[10..0].clk = clock;
	counter5a[10..1].clrn = (! aclr);
	counter5a[10..0].d = ( (counter5a[10].q $ counter_cout[9..9]), (counter5a[9].q $ (counter5a[8].q & counter_cout[8..8])), (counter5a[8].q $ (counter5a[7].q & counter_cout[7..7])), (counter5a[7].q $ (counter5a[6].q & counter_cout[6..6])), (counter5a[6].q $ (counter5a[5].q & counter_cout[5..5])), (counter5a[5].q $ (counter5a[4].q & counter_cout[4..4])), (counter5a[4].q $ (counter5a[3].q & counter_cout[3..3])), (counter5a[3].q $ (counter5a[2].q & counter_cout[2..2])), (counter5a[2].q $ (counter5a[1].q & counter_cout[1..1])), (counter5a[1].q $ (counter5a[0].q & counter_cout[0..0])), ((cnt_en & (counter5a[0].q $ (! parity_cout))) # ((! cnt_en) & counter5a[0].q)));
	counter5a[0].prn = (! aclr);
	counter5a[10..0].sclr = sclr;
	parity6.clk = clock;
	parity6.d = (parity6.q $ cnt_en);
	parity6.prn = (! aclr);
	parity6.sclr = sclr;
	counter_cout[] = ( B"0", (counter_cout[8..8] & (! counter5a[8].q)), (counter_cout[7..7] & (! counter5a[7].q)), (counter_cout[6..6] & (! counter5a[6].q)), (counter_cout[5..5] & (! counter5a[5].q)), (counter_cout[4..4] & (! counter5a[4].q)), (counter_cout[3..3] & (! counter5a[3].q)), (counter_cout[2..2] & (! counter5a[2].q)), (counter_cout[1..1] & (! counter5a[1].q)), (counter_cout[0..0] & (! counter5a[0].q)), (cnt_en & parity_cout));
	parity_cout = (((! parity6.q) $ updown) & cnt_en);
	q[] = counter5a[10..0].q;
	sclr = GND;
	updown = VCC;
END;
--VALID FILE