alt_sync_fifo_pqm.tdf

多功能卡的源代码

--alt_sync_fifo DEVICE_FAMILY="Cyclone" LPM_NUMWORDS=2048 LPM_SHOWAHEAD="OFF" LPM_WIDTH=16 LPM_WIDTHU=11 OVERFLOW_CHECKING="OFF" UNDERFLOW_CHECKING="OFF" USE_EAB="OFF" aclr data q rdclk rdempty rdfull rdreq rdusedw wrclk wrempty wrfull wrreq wrusedw
--VERSION_BEGIN 8.0 cbx_a_gray2bin 2008:02:23:252825 cbx_a_graycounter 2008:02:23:252825 cbx_altdpram 2008:03:07:257777 cbx_altsyncram 2008:03:26:267331 cbx_cycloneii 2008:02:23:252825 cbx_dcfifo 2008:04:22:277785 cbx_fifo_common 2008:02:23:252825 cbx_flex10ke 2008:02:23:252825 cbx_lpm_add_sub 2008:03:09:257947 cbx_lpm_compare 2008:02:23:252825 cbx_lpm_counter 2008:02:23:252825 cbx_lpm_decode 2008:02:23:252825 cbx_lpm_mux 2008:02:23:252825 cbx_mgl 2008:04:11:273944 cbx_scfifo 2008:02:23:252825 cbx_stratix 2008:02:23:252825 cbx_stratixii 2008:02:23:252825 cbx_stratixiii 2008:04:23:278548 cbx_util_mgl 2008:04:15:275689  VERSION_END


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FUNCTION altdpram (aclr, byteena[WIDTH_BYTEENA-1..0], data[WIDTH-1..0], inclock, inclocken, outclock, outclocken, rdaddress[WIDTHAD-1..0], rdaddressstall, rden, wraddress[WIDTHAD-1..0], wraddressstall, wren)
WITH ( BYTE_SIZE, INDATA_ACLR, INDATA_REG, LPM_FILE, lpm_hint, MAXIMUM_DEPTH, NUMWORDS, OUTDATA_ACLR, OUTDATA_REG, RAM_BLOCK_TYPE, RDADDRESS_ACLR, RDADDRESS_REG, RDCONTROL_ACLR, RDCONTROL_REG, READ_DURING_WRITE_MODE_MIXED_PORTS, USE_EAB, WIDTH, WIDTH_BYTEENA = 1, WIDTHAD, WRADDRESS_ACLR, WRADDRESS_REG, WRCONTROL_ACLR, WRCONTROL_REG)
RETURNS ( q[WIDTH-1..0]);
FUNCTION carry_sum (cin, sin)
RETURNS ( cout, sout);
FUNCTION add_sub_5g8 (dataa[10..0], datab[10..0])
RETURNS ( cout, result[10..0]);
FUNCTION add_sub_b18 (dataa[11..0], datab[11..0])
RETURNS ( result[11..0]);
FUNCTION cntr_mua (aclr, clock, cnt_en)
RETURNS ( q[11..0]);

--synthesis_resources = altdpram 1 lut 133 
SUBDESIGN alt_sync_fifo_pqm
( 
	aclr	:	input;
	data[15..0]	:	input;
	q[15..0]	:	output;
	rdclk	:	input;
	rdempty	:	output;
	rdfull	:	output;
	rdreq	:	input;
	rdusedw[10..0]	:	output;
	wrclk	:	input;
	wrempty	:	output;
	wrfull	:	output;
	wrreq	:	input;
	wrusedw[10..0]	:	output;
) 
VARIABLE 
	dpram4 : altdpram
		WITH (
			OUTDATA_REG = "OUTCLOCK",
			RDCONTROL_ACLR = "OFF",
			RDCONTROL_REG = "UNREGISTERED",
			USE_EAB = "OFF",
			WIDTH = 16,
			WIDTHAD = 11
		);
	cs11a[1..0] : carry_sum;
	cs12a[11..0] : carry_sum;
	cs13a[11..0] : carry_sum;
	cs6a[11..0] : carry_sum;
	dffe10a[11..0] : dffe;
	dffe5a[11..0] : dffe;
	dffe7a[11..0] : dffe;
	dffe8a[11..0] : dffe;
	dffe9a[11..0] : dffe;
	add_sub2 : add_sub_5g8;
	add_sub3 : add_sub_b18;
	cntr1 : cntr_mua;
	fast_feed_read	: WIRE;
	one[11..0]	: WIRE;
	read_count_actual[11..0]	: WIRE;

BEGIN 
	dpram4.aclr = aclr;
	dpram4.data[] = data[];
	dpram4.inclock = wrclk;
	dpram4.outclock = rdclk;
	dpram4.outclocken = rdreq;
	dpram4.rdaddress[10..0] = read_count_actual[10..0];
	dpram4.wraddress[10..0] = cntr1.q[10..0];
	dpram4.wren = wrreq;
	cs11a[].cin = ( ((! cs11a[0..0].cout) & wrreq), ((! (cntr1.q[11..11] $ dffe10a[11..11].q)) $ add_sub2.cout));
	cs11a[].sin = ( ((! cs11a[0..0].cout) & wrreq), ((! (cntr1.q[11..11] $ dffe10a[11..11].q)) $ add_sub2.cout));
	cs12a[].cin = ( ((! (cntr1.q[11..1] $ dffe10a[11..1].q)) & cs12a[10..0].cout), (! (cntr1.q[0..0] $ dffe10a[0..0].q)));
	cs12a[].sin = ( ((! (cntr1.q[11..1] $ dffe10a[11..1].q)) & cs12a[10..0].cout), (! (cntr1.q[0..0] $ dffe10a[0..0].q)));
	cs13a[].cin = ( ((! (dffe9a[11..1].q $ dffe7a[11..1].q)) & cs13a[10..0].cout), (! (dffe9a[0..0].q $ dffe7a[0..0].q)));
	cs13a[].sin = ( ((! (dffe9a[11..1].q $ dffe7a[11..1].q)) & cs13a[10..0].cout), (! (dffe9a[0..0].q $ dffe7a[0..0].q)));
	cs6a[].cin = ( (read_count_actual[11..1] & cs6a[10..0].cout), (fast_feed_read & read_count_actual[0..0]));
	cs6a[].sin = ( (read_count_actual[11..1] $ cs6a[10..0].cout), (fast_feed_read $ read_count_actual[0..0]));
	dffe10a[].clk = wrclk;
	dffe10a[].clrn = (! aclr);
	dffe10a[].d = dffe7a[].q;
	dffe5a[].clk = rdclk;
	dffe5a[].clrn = (! aclr);
	dffe5a[].d = (cs6a[].sout $ one[]);
	dffe7a[].clk = rdclk;
	dffe7a[].clrn = (! aclr);
	dffe7a[].d = read_count_actual[];
	dffe7a[].ena = rdreq;
	dffe8a[].clk = wrclk;
	dffe8a[].clrn = (! aclr);
	dffe8a[].d = cntr1.q[];
	dffe9a[].clk = rdclk;
	dffe9a[].clrn = (! aclr);
	dffe9a[].d = dffe8a[].q;
	add_sub2.dataa[10..0] = cntr1.q[10..0];
	add_sub2.datab[10..0] = dffe10a[10..0].q;
	add_sub3.dataa[] = dffe9a[].q;
	add_sub3.datab[] = dffe7a[].q;
	cntr1.aclr = aclr;
	cntr1.clock = wrclk;
	cntr1.cnt_en = wrreq;
	fast_feed_read = rdreq;
	one[] = B"000000000001";
	q[] = dpram4.q[];
	rdempty = cs13a[11..11].sout;
	rdfull = add_sub3.result[11..11];
	rdusedw[10..0] = add_sub3.result[10..0];
	read_count_actual[] = (dffe5a[].q $ one[]);
	wrempty = cs12a[11..11].sout;
	wrfull = cs11a[0..0].sout;
	wrusedw[10..0] = add_sub2.result[10..0];
END;
--VALID FILE