altsyncram_j1t.tdf

filter,很不错,大家可以看以下

--altsyncram ADDRESS_ACLR_A="NONE" CBX_DECLARE_ALL_CONNECTED_PORTS="OFF" DEVICE_FAMILY="Cyclone" ENABLE_RUNTIME_MOD="NO" INIT_FILE="mask_hseda.mif" NUMWORDS_A=16384 OPERATION_MODE="ROM" OUTDATA_ACLR_A="NONE" OUTDATA_REG_A="UNREGISTERED" RAM_BLOCK_TYPE="M4K" WIDTH_A=1 WIDTH_BYTEENA_A=1 WIDTHAD_A=14 address_a clock0 q_a
--VERSION_BEGIN 5.0 cbx_altsyncram 2005:11:01:19:33:48:SJ 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_decode 2004:12:13:14:19:12:SJ cbx_lpm_mux 2004:12:13:14:16:38:SJ cbx_mgl 2005:05:19:13:51:58:SJ cbx_stratix 2005:11:01:14:36:46:SJ cbx_stratixii 2004:12:22:13:27:12:SJ cbx_util_mgl 2005:04:04:13:50:06: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 decode_iga (data[1..0], enable)
RETURNS ( eq[3..0]);
FUNCTION mux_rab (data[3..0], sel[1..0])
RETURNS ( result[0..0]);
PARAMETERS
(
	PORT_A_ADDRESS_WIDTH = 1,
	PORT_A_BYTE_ENABLE_MASK_WIDTH = 1,
	PORT_A_DATA_WIDTH = 1,
	PORT_B_ADDRESS_WIDTH = 1,
	PORT_B_BYTE_ENABLE_MASK_WIDTH = 1,
	PORT_B_DATA_WIDTH = 1
);
FUNCTION cyclone_ram_block (clk0, clk1, clr0, clr1, ena0, ena1, portaaddr[PORT_A_ADDRESS_WIDTH-1..0], portabyteenamasks[PORT_A_BYTE_ENABLE_MASK_WIDTH-1..0], portadatain[PORT_A_DATA_WIDTH-1..0], portawe, portbaddr[PORT_B_ADDRESS_WIDTH-1..0], portbbyteenamasks[PORT_B_BYTE_ENABLE_MASK_WIDTH-1..0], portbdatain[PORT_B_DATA_WIDTH-1..0], portbrewe)
WITH ( 	CONNECTIVITY_CHECKING,	DATA_INTERLEAVE_OFFSET_IN_BITS,	DATA_INTERLEAVE_WIDTH_IN_BITS,	INIT_FILE,	INIT_FILE_LAYOUT,	LOGICAL_RAM_NAME,	mem_init0,	mem_init1,	MIXED_PORT_FEED_THROUGH_MODE,	OPERATION_MODE,	PORT_A_ADDRESS_CLEAR,	PORT_A_ADDRESS_WIDTH,	PORT_A_BYTE_ENABLE_CLEAR,	PORT_A_BYTE_ENABLE_MASK_WIDTH,	PORT_A_DATA_IN_CLEAR,	PORT_A_DATA_OUT_CLEAR,	PORT_A_DATA_OUT_CLOCK,	PORT_A_DATA_WIDTH,	PORT_A_FIRST_ADDRESS,	PORT_A_FIRST_BIT_NUMBER,	PORT_A_LAST_ADDRESS,	PORT_A_LOGICAL_RAM_DEPTH,	PORT_A_LOGICAL_RAM_WIDTH,	PORT_A_WRITE_ENABLE_CLEAR,	PORT_B_ADDRESS_CLEAR,	PORT_B_ADDRESS_CLOCK,	PORT_B_ADDRESS_WIDTH,	PORT_B_BYTE_ENABLE_CLEAR,	PORT_B_BYTE_ENABLE_CLOCK,	PORT_B_BYTE_ENABLE_MASK_WIDTH,	PORT_B_DATA_IN_CLEAR,	PORT_B_DATA_IN_CLOCK,	PORT_B_DATA_OUT_CLEAR,	PORT_B_DATA_OUT_CLOCK,	PORT_B_DATA_WIDTH,	PORT_B_FIRST_ADDRESS,	PORT_B_FIRST_BIT_NUMBER,	PORT_B_LAST_ADDRESS,	PORT_B_LOGICAL_RAM_DEPTH,	PORT_B_LOGICAL_RAM_WIDTH,	PORT_B_READ_ENABLE_WRITE_ENABLE_CLEAR,	PORT_B_READ_ENABLE_WRITE_ENABLE_CLOCK,	POWER_UP_UNINITIALIZED,	RAM_BLOCK_TYPE) 
RETURNS ( portadataout[PORT_A_DATA_WIDTH-1..0], portbdataout[PORT_B_DATA_WIDTH-1..0]);

--synthesis_resources = lut 4 M4K 4 
SUBDESIGN altsyncram_j1t
( 
	address_a[13..0]	:	input;
	clock0	:	input;
	q_a[0..0]	:	output;
) 
VARIABLE 
	address_reg_a[1..0] : dffe;
	deep_decode : decode_iga;
	mux2 : mux_rab;
	ram_block1a0 : cyclone_ram_block
		WITH (
			CONNECTIVITY_CHECKING = "OFF",
			INIT_FILE = "mask_hseda.mif",
			INIT_FILE_LAYOUT = "port_a",
			LOGICAL_RAM_NAME = "ALTSYNCRAM",
			OPERATION_MODE = "rom",
			PORT_A_ADDRESS_CLEAR = "none",
			PORT_A_ADDRESS_WIDTH = 12,
			PORT_A_DATA_OUT_CLEAR = "none",
			PORT_A_DATA_OUT_CLOCK = "none",
			PORT_A_DATA_WIDTH = 1,
			PORT_A_FIRST_ADDRESS = 0,
			PORT_A_FIRST_BIT_NUMBER = 0,
			PORT_A_LAST_ADDRESS = 4095,
			PORT_A_LOGICAL_RAM_DEPTH = 16384,
			PORT_A_LOGICAL_RAM_WIDTH = 1,
			RAM_BLOCK_TYPE = "M4K"
		);
	ram_block1a1 : cyclone_ram_block
		WITH (
			CONNECTIVITY_CHECKING = "OFF",
			INIT_FILE = "mask_hseda.mif",
			INIT_FILE_LAYOUT = "port_a",
			LOGICAL_RAM_NAME = "ALTSYNCRAM",
			OPERATION_MODE = "rom",
			PORT_A_ADDRESS_CLEAR = "none",
			PORT_A_ADDRESS_WIDTH = 12,
			PORT_A_DATA_OUT_CLEAR = "none",
			PORT_A_DATA_OUT_CLOCK = "none",
			PORT_A_DATA_WIDTH = 1,
			PORT_A_FIRST_ADDRESS = 4096,
			PORT_A_FIRST_BIT_NUMBER = 0,
			PORT_A_LAST_ADDRESS = 8191,
			PORT_A_LOGICAL_RAM_DEPTH = 16384,
			PORT_A_LOGICAL_RAM_WIDTH = 1,
			RAM_BLOCK_TYPE = "M4K"
		);
	ram_block1a2 : cyclone_ram_block
		WITH (
			CONNECTIVITY_CHECKING = "OFF",
			INIT_FILE = "mask_hseda.mif",
			INIT_FILE_LAYOUT = "port_a",
			LOGICAL_RAM_NAME = "ALTSYNCRAM",
			OPERATION_MODE = "rom",
			PORT_A_ADDRESS_CLEAR = "none",
			PORT_A_ADDRESS_WIDTH = 12,
			PORT_A_DATA_OUT_CLEAR = "none",
			PORT_A_DATA_OUT_CLOCK = "none",
			PORT_A_DATA_WIDTH = 1,
			PORT_A_FIRST_ADDRESS = 8192,
			PORT_A_FIRST_BIT_NUMBER = 0,
			PORT_A_LAST_ADDRESS = 12287,
			PORT_A_LOGICAL_RAM_DEPTH = 16384,
			PORT_A_LOGICAL_RAM_WIDTH = 1,
			RAM_BLOCK_TYPE = "M4K"
		);
	ram_block1a3 : cyclone_ram_block
		WITH (
			CONNECTIVITY_CHECKING = "OFF",
			INIT_FILE = "mask_hseda.mif",
			INIT_FILE_LAYOUT = "port_a",
			LOGICAL_RAM_NAME = "ALTSYNCRAM",
			OPERATION_MODE = "rom",
			PORT_A_ADDRESS_CLEAR = "none",
			PORT_A_ADDRESS_WIDTH = 12,
			PORT_A_DATA_OUT_CLEAR = "none",
			PORT_A_DATA_OUT_CLOCK = "none",
			PORT_A_DATA_WIDTH = 1,
			PORT_A_FIRST_ADDRESS = 12288,
			PORT_A_FIRST_BIT_NUMBER = 0,
			PORT_A_LAST_ADDRESS = 16383,
			PORT_A_LOGICAL_RAM_DEPTH = 16384,
			PORT_A_LOGICAL_RAM_WIDTH = 1,
			RAM_BLOCK_TYPE = "M4K"
		);
	address_a_wire[13..0]	: WIRE;
	clocken0	: NODE;

BEGIN 
	address_reg_a[].CLK = clock0;
	address_reg_a[].D = address_a[13..12];
	address_reg_a[].ENA = clocken0;
	deep_decode.data[1..0] = address_a_wire[13..12];
	deep_decode.enable = B"1";
	mux2.data[] = ( ram_block1a[3..0].portadataout[0..0]);
	mux2.sel[] = address_reg_a[].Q;
	ram_block1a[3..0].clk0 = clock0;
	ram_block1a[0].ena0 = deep_decode.eq[0..0];
	ram_block1a[1].ena0 = deep_decode.eq[1..1];
	ram_block1a[2].ena0 = deep_decode.eq[2..2];
	ram_block1a[3].ena0 = deep_decode.eq[3..3];
	ram_block1a[0].portaaddr[] = ( address_a_wire[11..0]);
	ram_block1a[1].portaaddr[] = ( address_a_wire[11..0]);
	ram_block1a[2].portaaddr[] = ( address_a_wire[11..0]);
	ram_block1a[3].portaaddr[] = ( address_a_wire[11..0]);
	address_a_wire[] = address_a[];
	clocken0 = VCC;
	q_a[] = mux2.result[];
END;
--VALID FILE