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Commit cdd58e0

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author
Sebastien Bourdeauducq
committedFeb 17, 2012
s6ddrphy: use single-ended DQS
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Index: s6ddrphy/spartan6_soft_phy.v
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===================================================================
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--- s6ddrphy.orig/spartan6_soft_phy.v
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+++ s6ddrphy/spartan6_soft_phy.v
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@@ -116,7 +116,6 @@ module spartan6_soft_phy # (
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inout [NUM_DQ-1:0] sd_dq, // Data in from SDRAM device
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output [NUM_DQS-1:0] sd_dm, // Data mask to SDRAM devices
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inout [NUM_DQS-1:0] sd_dqs, // DQS
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- inout [NUM_DQS-1:0] sd_dqs_n, // complimentary DQS
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// configuration ports
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input [2:0] cfg_al, // Posted CAS additive latency
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@@ -300,12 +299,11 @@ genvar j;
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generate
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for (j = 0; j < NUM_DQ/8*(NIBBLE_DEVICES+1) ; j = j + 1)
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begin:dqs_iob
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- IOBUFDS iobufds (
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+ IOBUF iobufds (
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.O (sd_dqs_in[j]),
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.I (sd_dqs_out[j]),
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.T (sd_dqs_oe_n[j]),
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- .IO (sd_dqs[j]),
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- .IOB (sd_dqs_n[j])
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+ .IO (sd_dqs[j])
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);
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end
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endgenerate

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