?? cntr_c58.tdf
字號:
--lpm_counter DEVICE_FAMILY="Cyclone II" lpm_modulus=5 lpm_width=3 aclr clk_en(vcc) clock q
--VERSION_BEGIN 5.0 cbx_cycloneii 2004:12:20:14:28:52:SJ cbx_lpm_add_sub 2005:04:12:13:30:42:SJ cbx_lpm_compare 2004:11:30:11:30:40:SJ cbx_lpm_counter 2005:02:02:04:37:10:SJ cbx_lpm_decode 2004:12:13:14:19:12:SJ cbx_mgl 2005:04:13:17:26:48:SJ cbx_stratix 2005:03:14:17:09:02:SJ cbx_stratixii 2004:12:22:13:27:12:SJ VERSION_END
-- Copyright (C) 1988-2005 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.
FUNCTION cycloneii_lcell_comb (cin, dataa, datab, datac, datad)
WITH ( LUT_MASK, SUM_LUTC_INPUT)
RETURNS ( combout, cout);
FUNCTION cycloneii_lcell_ff (aclr, clk, datain, ena, sclr, sdata, sload)
RETURNS ( regout);
--synthesis_resources = lut 6 reg 3
SUBDESIGN cntr_c58
(
aclr : input;
clk_en : input;
clock : input;
q[2..0] : output;
)
VARIABLE
counter_comb_bita0 : cycloneii_lcell_comb
WITH (
LUT_MASK = "5A90",
SUM_LUTC_INPUT = "cin"
);
counter_comb_bita1 : cycloneii_lcell_comb
WITH (
LUT_MASK = "5A90",
SUM_LUTC_INPUT = "cin"
);
counter_comb_bita2 : cycloneii_lcell_comb
WITH (
LUT_MASK = "5A90",
SUM_LUTC_INPUT = "cin"
);
counter_reg_bit1a[2..0] : cycloneii_lcell_ff;
cmpr2_aeb_int : WIRE;
cmpr2_aeb : WIRE;
cmpr2_dataa[2..0] : WIRE;
cmpr2_datab[2..0] : WIRE;
a_val[2..0] : WIRE;
aclr_actual : WIRE;
cnt_en : NODE;
compare_result : WIRE;
cout_actual : WIRE;
data[2..0] : NODE;
external_cin : WIRE;
modulus_bus[2..0] : WIRE;
modulus_trigger : WIRE;
s_val[2..0] : WIRE;
safe_q[2..0] : WIRE;
sclr : NODE;
sload : NODE;
sset : NODE;
time_to_clear : WIRE;
updown_dir : WIRE;
BEGIN
counter_comb_bita[0].cin = external_cin;
counter_comb_bita[1].cin = counter_comb_bita[0].cout;
counter_comb_bita[2].cin = counter_comb_bita[1].cout;
counter_comb_bita[0].dataa = counter_reg_bit1a[0].regout;
counter_comb_bita[1].dataa = counter_reg_bit1a[1].regout;
counter_comb_bita[2].dataa = counter_reg_bit1a[2].regout;
counter_comb_bita[0].datab = updown_dir;
counter_comb_bita[1].datab = updown_dir;
counter_comb_bita[2].datab = updown_dir;
counter_comb_bita[0].datad = B"1";
counter_comb_bita[1].datad = B"1";
counter_comb_bita[2].datad = B"1";
counter_reg_bit1a[].aclr = aclr_actual;
counter_reg_bit1a[].clk = clock;
counter_reg_bit1a[0].datain = counter_comb_bita[0].combout;
counter_reg_bit1a[1].datain = counter_comb_bita[1].combout;
counter_reg_bit1a[2].datain = counter_comb_bita[2].combout;
counter_reg_bit1a[].ena = (clk_en & (((sclr # sset) # sload) # cnt_en));
counter_reg_bit1a[].sdata = ((! sclr) & ((sset & s_val[]) # ((! sset) & ((sload & data[]) # (((! sload) & modulus_bus[]) & (! updown_dir))))));
counter_reg_bit1a[].sload = (((sclr # sset) # sload) # modulus_trigger);
IF (cmpr2_dataa[] == cmpr2_datab[]) THEN
cmpr2_aeb_int = VCC;
ELSE
cmpr2_aeb_int = GND;
END IF;
cmpr2_aeb = cmpr2_aeb_int;
cmpr2_dataa[] = safe_q[];
cmpr2_datab[] = modulus_bus[];
a_val[] = B"111";
aclr_actual = aclr;
cnt_en = VCC;
compare_result = cmpr2_aeb;
cout_actual = (counter_comb_bita[2].cout # (time_to_clear & updown_dir));
data[] = GND;
external_cin = B"1";
modulus_bus[] = B"100";
modulus_trigger = cout_actual;
q[] = safe_q[];
s_val[] = B"111";
safe_q[] = counter_reg_bit1a[].regout;
sclr = GND;
sload = GND;
sset = GND;
time_to_clear = compare_result;
updown_dir = B"1";
END;
--VALID FILE
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