From 1912ff60acd490a24204a7596e373e9aef9276cd Mon Sep 17 00:00:00 2001 From: Matt Ettus Date: Wed, 17 Feb 2010 15:00:41 -0800 Subject: speed up the presentation of registered wb data to the gpmc --- usrp2/gpmc/gpmc.v | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'usrp2/gpmc/gpmc.v') diff --git a/usrp2/gpmc/gpmc.v b/usrp2/gpmc/gpmc.v index 1963af6e6..56f879abc 100644 --- a/usrp2/gpmc/gpmc.v +++ b/usrp2/gpmc/gpmc.v @@ -12,7 +12,7 @@ module gpmc wire EM_output_enable = (~EM_NOE & (~EM_NCS4 | ~EM_NCS6)); wire [15:0] EM_D_ram; - reg [15:0] EM_D_wb; + wire [15:0] EM_D_wb; assign EM_D = ~EM_output_enable ? 16'bz : ~EM_NCS4 ? EM_D_ram : EM_D_wb; @@ -44,10 +44,13 @@ module gpmc wb_sel_o <= ~EM_NBE; end + reg [15:0] EM_D_wb_reg; always @(posedge wb_clk) if(wb_ack_i) - EM_D_wb <= wb_dat_miso; + EM_D_wb_reg <= wb_dat_miso; + assign EM_D_wb = wb_ack_i ? wb_dat_miso : EM_D_wb_reg; + // stb, oe_del, we_del assign wb_cyc_o = wb_stb_o; -- cgit v1.2.3