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- reserved 32 byte window for RX/TX-Data at offset 0x20..0x3C

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git-svn-id: http://moon:8086/svn/vhdl/trunk@908 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2010-04-10 10:15:56 +00:00
parent b5feee8447
commit 0af5d4e58c
1 changed files with 15 additions and 7 deletions
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lib/emac/src/emac_top_jb.vhd
+15 -7
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@@ -123,9 +123,7 @@ registers_write:
tx_ctrl_in.tx_size <= DAT_I(15 downto 0);
-- 0x0010
when "0100" =>
tx_din_vld <= '1';
tx_din <= DAT_I;
-- Gap
-- 0x0014
-- Gap
@@ -142,7 +140,13 @@ registers_write:
rx_ctrl_in.mac_addr(4) <= DAT_I(31 downto 24);
rx_ctrl_in.mac_addr(5) <= DAT_I(23 downto 16);
when others => null;
-- 0x0020 .. 0x003C
-- Window for TX-Data (8 words)
-- For cached burst access, this must be greater or equal to D-Cache line size
when others =>
tx_din_vld <= '1';
tx_din <= DAT_I;
end case;
end if;
end if;
@@ -195,8 +199,7 @@ registers_read:
DAT_O <= X"0000" & tx_ctrl_out.tx_size;
-- 0x0010
when "0100" =>
rx_ctrl_in.pkt_read_en <= '1';
-- Gap
-- 0x0014
-- Gap
@@ -211,7 +214,12 @@ registers_read:
ACK_O <= '1';
DAT_O <= rx_ctrl_in.mac_addr(4) & rx_ctrl_in.mac_addr(5) & X"0000";
when others => null;
-- 0x0020 .. 0x003C
-- Window for RX-Data (8 words)
-- For cached burst access, this must be greater or equal to D-Cache line size
when others =>
rx_ctrl_in.pkt_read_en <= '1';
end case;
end if;
end if;