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- changed CMD_FIFO_ADDR_WIDTH = 5

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git-svn-id: http://moon:8086/svn/vhdl/trunk@590 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2009-11-03 22:51:19 +00:00
parent 054d232b6c
commit bfed7a6680
1 changed files with 2 additions and 4 deletions
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lib/SDRAM/ddr_sdr_v1_5/src/sdram_ctrl_top.vhd
+2 -4
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@@ -96,7 +96,7 @@ architecture rtl of sdram_ctrl_top is
-- SD command FIFO -- SD command FIFO
constant CMD_FIFO_ADDR_WIDTH : positive := 2; -- lower than 3 won't give sustained throuhput (for sys_clk == sdram_clk) constant CMD_FIFO_ADDR_WIDTH : positive := 5; -- lower than 3 won't give sustained throuhput (for sys_clk == sdram_clk)
constant CMD_FIFO_DATA_WIDTH : positive := user_tag_t'length + 4 + mode_word_t'length + col_addr_t'length; constant CMD_FIFO_DATA_WIDTH : positive := user_tag_t'length + 4 + mode_word_t'length + col_addr_t'length;
signal cmd_fifo_din : unsigned(CMD_FIFO_DATA_WIDTH-1 downto 0); signal cmd_fifo_din : unsigned(CMD_FIFO_DATA_WIDTH-1 downto 0);
signal cmd_fifo_dout : unsigned(CMD_FIFO_DATA_WIDTH-1 downto 0); signal cmd_fifo_dout : unsigned(CMD_FIFO_DATA_WIDTH-1 downto 0);
@@ -167,9 +167,7 @@ begin
GENERIC MAP GENERIC MAP
( (
addr_width => CMD_FIFO_ADDR_WIDTH, addr_width => CMD_FIFO_ADDR_WIDTH,
data_width => CMD_FIFO_DATA_WIDTH, data_width => CMD_FIFO_DATA_WIDTH
almost_full_thresh => 2**(CMD_FIFO_ADDR_WIDTH-1),
almost_empty_thresh => 2**(CMD_FIFO_ADDR_WIDTH-1)
) )
PORT MAP PORT MAP
( (