sdram_top.bsf

sdram 控制器的verilog 实现

/*
WARNING: Do NOT edit the input and output ports in this file in a text
editor if you plan to continue editing the block that represents it in
the Block Editor! File corruption is VERY likely to occur.
*/
/*
Copyright (C) 1991-2007 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 from 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.
*/
(header "symbol" (version "1.1"))
(symbol
	(rect 16 16 272 304)
	(text "sdram_top" (rect 5 0 56 12)(font "Arial" ))
	(text "inst" (rect 8 272 25 284)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clk" (rect 0 0 14 12)(font "Arial" ))
		(text "clk" (rect 21 27 35 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "rst_n" (rect 0 0 24 12)(font "Arial" ))
		(text "rst_n" (rect 21 43 45 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "read_req" (rect 0 0 42 12)(font "Arial" ))
		(text "read_req" (rect 21 59 63 71)(font "Arial" ))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 0 80)
		(input)
		(text "write_req" (rect 0 0 43 12)(font "Arial" ))
		(text "write_req" (rect 21 75 64 87)(font "Arial" ))
		(line (pt 0 80)(pt 16 80)(line_width 1))
	)
	(port
		(pt 0 96)
		(input)
		(text "burst_len[8..0]" (rect 0 0 70 12)(font "Arial" ))
		(text "burst_len[8..0]" (rect 21 91 91 103)(font "Arial" ))
		(line (pt 0 96)(pt 16 96)(line_width 3))
	)
	(port
		(pt 0 112)
		(input)
		(text "sys_addr[21..0]" (rect 0 0 77 12)(font "Arial" ))
		(text "sys_addr[21..0]" (rect 21 107 98 119)(font "Arial" ))
		(line (pt 0 112)(pt 16 112)(line_width 3))
	)
	(port
		(pt 0 128)
		(input)
		(text "data_from_sys[15..0]" (rect 0 0 107 12)(font "Arial" ))
		(text "data_from_sys[15..0]" (rect 21 123 128 135)(font "Arial" ))
		(line (pt 0 128)(pt 16 128)(line_width 3))
	)
	(port
		(pt 256 32)
		(output)
		(text "read_ack" (rect 0 0 44 12)(font "Arial" ))
		(text "read_ack" (rect 191 27 235 39)(font "Arial" ))
		(line (pt 256 32)(pt 240 32)(line_width 1))
	)
	(port
		(pt 256 48)
		(output)
		(text "write_ack" (rect 0 0 46 12)(font "Arial" ))
		(text "write_ack" (rect 189 43 235 55)(font "Arial" ))
		(line (pt 256 48)(pt 240 48)(line_width 1))
	)
	(port
		(pt 256 64)
		(output)
		(text "r_data_valid" (rect 0 0 60 12)(font "Arial" ))
		(text "r_data_valid" (rect 175 59 235 71)(font "Arial" ))
		(line (pt 256 64)(pt 240 64)(line_width 1))
	)
	(port
		(pt 256 80)
		(output)
		(text "w_data_valid" (rect 0 0 63 12)(font "Arial" ))
		(text "w_data_valid" (rect 172 75 235 87)(font "Arial" ))
		(line (pt 256 80)(pt 240 80)(line_width 1))
	)
	(port
		(pt 256 96)
		(output)
		(text "data_to_sys[15..0]" (rect 0 0 93 12)(font "Arial" ))
		(text "data_to_sys[15..0]" (rect 142 91 235 103)(font "Arial" ))
		(line (pt 256 96)(pt 240 96)(line_width 3))
	)
	(port
		(pt 256 112)
		(output)
		(text "setup_done" (rect 0 0 56 12)(font "Arial" ))
		(text "setup_done" (rect 179 107 235 119)(font "Arial" ))
		(line (pt 256 112)(pt 240 112)(line_width 1))
	)
	(port
		(pt 256 128)
		(output)
		(text "sdr_CKE" (rect 0 0 43 12)(font "Arial" ))
		(text "sdr_CKE" (rect 192 123 235 135)(font "Arial" ))
		(line (pt 256 128)(pt 240 128)(line_width 1))
	)
	(port
		(pt 256 144)
		(output)
		(text "sdr_CSn" (rect 0 0 42 12)(font "Arial" ))
		(text "sdr_CSn" (rect 193 139 235 151)(font "Arial" ))
		(line (pt 256 144)(pt 240 144)(line_width 1))
	)
	(port
		(pt 256 160)
		(output)
		(text "sdr_RASn" (rect 0 0 49 12)(font "Arial" ))
		(text "sdr_RASn" (rect 186 155 235 167)(font "Arial" ))
		(line (pt 256 160)(pt 240 160)(line_width 1))
	)
	(port
		(pt 256 176)
		(output)
		(text "sdr_CASn" (rect 0 0 49 12)(font "Arial" ))
		(text "sdr_CASn" (rect 186 171 235 183)(font "Arial" ))
		(line (pt 256 176)(pt 240 176)(line_width 1))
	)
	(port
		(pt 256 192)
		(output)
		(text "sdr_WEn" (rect 0 0 44 12)(font "Arial" ))
		(text "sdr_WEn" (rect 191 187 235 199)(font "Arial" ))
		(line (pt 256 192)(pt 240 192)(line_width 1))
	)
	(port
		(pt 256 208)
		(output)
		(text "sdr_BA[1..0]" (rect 0 0 61 12)(font "Arial" ))
		(text "sdr_BA[1..0]" (rect 174 203 235 215)(font "Arial" ))
		(line (pt 256 208)(pt 240 208)(line_width 3))
	)
	(port
		(pt 256 224)
		(output)
		(text "sdr_DMQ[1..0]" (rect 0 0 71 12)(font "Arial" ))
		(text "sdr_DMQ[1..0]" (rect 164 219 235 231)(font "Arial" ))
		(line (pt 256 224)(pt 240 224)(line_width 3))
	)
	(port
		(pt 256 256)
		(output)
		(text "sdr_ADDR[11..0]" (rect 0 0 84 12)(font "Arial" ))
		(text "sdr_ADDR[11..0]" (rect 151 251 235 263)(font "Arial" ))
		(line (pt 256 256)(pt 240 256)(line_width 3))
	)
	(port
		(pt 256 240)
		(bidir)
		(text "sdr_DATA[15..0]" (rect 0 0 81 12)(font "Arial" ))
		(text "sdr_DATA[15..0]" (rect 154 235 235 247)(font "Arial" ))
		(line (pt 256 240)(pt 240 240)(line_width 3))
	)
	(drawing
		(rectangle (rect 16 16 240 272)(line_width 1))
	)
)