copied over from u1e, most pins hooked up.

6 files changed, 588 insertions, 637 deletions

diff --git a/usrp2/top/u1_core/.gitignore b/usrp2/top/u1_core/.gitignore
deleted file mode 100644
index 9728395c1..000000000
--- a/usrp2/top/u1_core/.gitignore
+++ /dev/null
@@ -1,44 +0,0 @@
-*~
-/xst
-/_ngo
-/_xmsgs
-/*.stx
-/*.tspec
-/*.xml
-/*.gyd
-/*.ngr
-/*.tim
-/*.err
-/*.lso
-/*.bld
-/*.cmd_log
-/*.ise_ISE_Backup
-/*.mfd
-/*.vm6
-/*.syr
-/*.xst
-/*.csv
-/*.html
-/*.jed
-/*.pad
-/*.ng*
-/*.pnx
-/*.rpt
-/*.prj
-/*_html
-/*_log
-/*.lfp
-/*.bit
-/*.bin
-/*.vcd
-/*.unroutes
-/*.drc
-/*_map.*
-/*_guide.*
-/*.twr
-/*.twx
-/a.out
-/*.xpi
-/*_pad.txt
-/*.bgn
-/*.par
diff --git a/usrp2/top/u1_core/u1_core.v b/usrp2/top/u1_core/u1_core.v
deleted file mode 100755
index 24a57936e..000000000
--- a/usrp2/top/u1_core/u1_core.v
+++ /dev/null
@@ -1,455 +0,0 @@
-// ////////////////////////////////////////////////////////////////////////////////
-// Module Name:    u2_core
-// ////////////////////////////////////////////////////////////////////////////////
-
-module u1_core
-  #(parameter RAM_SIZE=16384)
-   (input sys_clk, input sys_rst,
-    input wb_clk, input wb_rst,
-    
-    output uart_tx_o, input uart_rx_i, output uart_baud_o,
-    output [2:0] leds, output [31:0] debug, output [1:0] debug_clk,
-
-    input scl_pad_i, output scl_pad_o, output scl_pad_oen_o,
-    input sda_pad_i, output sda_pad_o, output sda_pad_oen_o,
-    
-    input pps,
-    output reset_codec,
-
-    input gpif_clk, inout [15:0] gpif_d, input [3:0] gpif_ctl, output [3:0] gpif_rdy,
-    input [2:0] gpif_misc,
-    
-    input [11:0] adc, input rxsync,
-    output [13:0] dac, output txsync, output txblank,
-    
-    // Generic SPI
-    output sclk,
-    output mosi,
-    input miso,
-    output [3:0] sen,
-    
-    // GPIO to DBoards
-    inout [15:0] io_tx,
-    inout [15:0] io_rx,
-    
-    input sim_mode
-    );
-   
-   wire [7:0] set_addr;
-   wire [31:0] set_data;
-   wire        set_stb;
-   
-   wire        ram_loader_done, ram_loader_rst;
-   
-   wire [31:0] 	status, status_b0, status_b1, status_b2, status_b3, status_b4, status_b5, status_b6, status_b7;
-   wire 	bus_error, spi_int, i2c_int, pps_int, timer_int, buffer_int, proc_int, overrun, underrun, uart_tx_int, uart_rx_int;
-
-   wire [31:0] 	debug_gpio_0, debug_gpio_1;
-   wire [31:0] 	atr_lines;
-
-   wire [31:0] 	debug_rx, debug_mac, debug_mac0, debug_mac1, debug_tx_dsp, debug_txc, 
-		debug_serdes0, debug_serdes1, debug_serdes2, debug_rx_dsp;
-
-   wire [15:0] 	ser_rx_occ, ser_tx_occ, dsp_rx_occ, dsp_tx_occ, eth_rx_occ, eth_tx_occ, eth_rx_occ2;
-   wire 	ser_rx_full, ser_tx_full, dsp_rx_full, dsp_tx_full, eth_rx_full, eth_tx_full, eth_rx_full2;
-   wire 	ser_rx_empty, ser_tx_empty, dsp_rx_empty, dsp_tx_empty, eth_rx_empty, eth_tx_empty, eth_rx_empty2;
-	
-   wire 	serdes_link_up;
-   wire 	epoch;
-   wire [31:0] 	irq;
-   
-   // ///////////////////////////////////////////////////////////////////////////////////////////////
-   // Wishbone Single Master INTERCON
-   localparam 	dw = 32;  // Data bus width
-   localparam 	aw = 16;  // Address bus width, for byte addressibility, 16 = 64K byte memory space
-   localparam	sw = 4;   // Select width -- 32-bit data bus with 8-bit granularity.  
-   
-   wire [dw-1:0] m0_dat_o, m0_dat_i;
-   wire [dw-1:0] s0_dat_o, s1_dat_o, s0_dat_i, s1_dat_i, s2_dat_o, s3_dat_o, s2_dat_i, s3_dat_i,
-		 s4_dat_o, s5_dat_o, s4_dat_i, s5_dat_i, s6_dat_o, s7_dat_o, s6_dat_i, s7_dat_i,
-		 s8_dat_o, s9_dat_o, s8_dat_i, s9_dat_i, sa_dat_o, sa_dat_i, sb_dat_i, sb_dat_o,
-		 sc_dat_i, sc_dat_o, sd_dat_i, sd_dat_o, se_dat_i, se_dat_o;
-   wire [aw-1:0] m0_adr,s0_adr,s1_adr,s2_adr,s3_adr,s4_adr,s5_adr,s6_adr,s7_adr,s8_adr,s9_adr,sa_adr,sb_adr,sc_adr, sd_adr, se_adr;
-   wire [sw-1:0] m0_sel,s0_sel,s1_sel,s2_sel,s3_sel,s4_sel,s5_sel,s6_sel,s7_sel,s8_sel,s9_sel,sa_sel,sb_sel,sc_sel, sd_sel, se_sel;
-   wire 	 m0_ack,s0_ack,s1_ack,s2_ack,s3_ack,s4_ack,s5_ack,s6_ack,s7_ack,s8_ack,s9_ack,sa_ack,sb_ack,sc_ack, sd_ack, se_ack;
-   wire 	 m0_stb,s0_stb,s1_stb,s2_stb,s3_stb,s4_stb,s5_stb,s6_stb,s7_stb,s8_stb,s9_stb,sa_stb,sb_stb,sc_stb, sd_stb, se_stb;
-   wire 	 m0_cyc,s0_cyc,s1_cyc,s2_cyc,s3_cyc,s4_cyc,s5_cyc,s6_cyc,s7_cyc,s8_cyc,s9_cyc,sa_cyc,sb_cyc,sc_cyc, sd_cyc, se_cyc;
-   wire 	 m0_err, m0_rty;
-   wire 	 m0_we,s0_we,s1_we,s2_we,s3_we,s4_we,s5_we,s6_we,s7_we,s8_we,s9_we,sa_we,sb_we,sc_we,sd_we, se_we;
-   
-   wb_1master #(.decode_w(6),
-		.s0_addr(6'b0000_00),.s0_mask(6'b100000),
-		.s1_addr(6'b1000_00),.s1_mask(6'b110000),
- 		.s2_addr(6'b1100_00),.s2_mask(6'b111111),
-		.s3_addr(6'b1100_01),.s3_mask(6'b111111),
-		.s4_addr(6'b1100_10),.s4_mask(6'b111111),
-		.s5_addr(6'b1100_11),.s5_mask(6'b111111),
-		.s6_addr(6'b1101_00),.s6_mask(6'b111111),
-		.s7_addr(6'b1101_01),.s7_mask(6'b111111),
-		.s8_addr(6'b1101_10),.s8_mask(6'b111111),
-		.s9_addr(6'b1101_11),.s9_mask(6'b111111),
-		.sa_addr(6'b1110_00),.sa_mask(6'b111111),
-		.sb_addr(6'b1110_01),.sb_mask(6'b111111),
-		.sc_addr(6'b1110_10),.sc_mask(6'b111111),
-		.sd_addr(6'b1110_11),.sd_mask(6'b111111),
-		.se_addr(6'b1111_00),.se_mask(6'b111111),
-		.sf_addr(6'b1111_01),.sf_mask(6'b111111),
-		.dw(dw),.aw(aw),.sw(sw)) wb_1master
-     (.clk_i(wb_clk),.rst_i(wb_rst),       
-      .m0_dat_o(m0_dat_o),.m0_ack_o(m0_ack),.m0_err_o(m0_err),.m0_rty_o(m0_rty),.m0_dat_i(m0_dat_i),
-      .m0_adr_i(m0_adr),.m0_sel_i(m0_sel),.m0_we_i(m0_we),.m0_cyc_i(m0_cyc),.m0_stb_i(m0_stb),
-      .s0_dat_o(s0_dat_o),.s0_adr_o(s0_adr),.s0_sel_o(s0_sel),.s0_we_o	(s0_we),.s0_cyc_o(s0_cyc),.s0_stb_o(s0_stb),
-      .s0_dat_i(s0_dat_i),.s0_ack_i(s0_ack),.s0_err_i(0),.s0_rty_i(0),
-      .s1_dat_o(s1_dat_o),.s1_adr_o(s1_adr),.s1_sel_o(s1_sel),.s1_we_o	(s1_we),.s1_cyc_o(s1_cyc),.s1_stb_o(s1_stb),
-      .s1_dat_i(s1_dat_i),.s1_ack_i(s1_ack),.s1_err_i(0),.s1_rty_i(0),
-      .s2_dat_o(s2_dat_o),.s2_adr_o(s2_adr),.s2_sel_o(s2_sel),.s2_we_o	(s2_we),.s2_cyc_o(s2_cyc),.s2_stb_o(s2_stb),
-      .s2_dat_i(s2_dat_i),.s2_ack_i(s2_ack),.s2_err_i(0),.s2_rty_i(0),
-      .s3_dat_o(s3_dat_o),.s3_adr_o(s3_adr),.s3_sel_o(s3_sel),.s3_we_o	(s3_we),.s3_cyc_o(s3_cyc),.s3_stb_o(s3_stb),
-      .s3_dat_i(s3_dat_i),.s3_ack_i(s3_ack),.s3_err_i(0),.s3_rty_i(0),
-      .s4_dat_o(s4_dat_o),.s4_adr_o(s4_adr),.s4_sel_o(s4_sel),.s4_we_o	(s4_we),.s4_cyc_o(s4_cyc),.s4_stb_o(s4_stb),
-      .s4_dat_i(s4_dat_i),.s4_ack_i(s4_ack),.s4_err_i(0),.s4_rty_i(0),
-      .s5_dat_o(s5_dat_o),.s5_adr_o(s5_adr),.s5_sel_o(s5_sel),.s5_we_o	(s5_we),.s5_cyc_o(s5_cyc),.s5_stb_o(s5_stb),
-      .s5_dat_i(s5_dat_i),.s5_ack_i(s5_ack),.s5_err_i(0),.s5_rty_i(0),
-      .s6_dat_o(s6_dat_o),.s6_adr_o(s6_adr),.s6_sel_o(s6_sel),.s6_we_o	(s6_we),.s6_cyc_o(s6_cyc),.s6_stb_o(s6_stb),
-      .s6_dat_i(s6_dat_i),.s6_ack_i(s6_ack),.s6_err_i(0),.s6_rty_i(0),
-      .s7_dat_o(s7_dat_o),.s7_adr_o(s7_adr),.s7_sel_o(s7_sel),.s7_we_o	(s7_we),.s7_cyc_o(s7_cyc),.s7_stb_o(s7_stb),
-      .s7_dat_i(s7_dat_i),.s7_ack_i(s7_ack),.s7_err_i(0),.s7_rty_i(0),
-      .s8_dat_o(s8_dat_o),.s8_adr_o(s8_adr),.s8_sel_o(s8_sel),.s8_we_o	(s8_we),.s8_cyc_o(s8_cyc),.s8_stb_o(s8_stb),
-      .s8_dat_i(s8_dat_i),.s8_ack_i(s8_ack),.s8_err_i(0),.s8_rty_i(0),
-      .s9_dat_o(s9_dat_o),.s9_adr_o(s9_adr),.s9_sel_o(s9_sel),.s9_we_o	(s9_we),.s9_cyc_o(s9_cyc),.s9_stb_o(s9_stb),
-      .s9_dat_i(s9_dat_i),.s9_ack_i(s9_ack),.s9_err_i(0),.s9_rty_i(0),
-      .sa_dat_o(sa_dat_o),.sa_adr_o(sa_adr),.sa_sel_o(sa_sel),.sa_we_o(sa_we),.sa_cyc_o(sa_cyc),.sa_stb_o(sa_stb),
-      .sa_dat_i(sa_dat_i),.sa_ack_i(sa_ack),.sa_err_i(0),.sa_rty_i(0),
-      .sb_dat_o(sb_dat_o),.sb_adr_o(sb_adr),.sb_sel_o(sb_sel),.sb_we_o(sb_we),.sb_cyc_o(sb_cyc),.sb_stb_o(sb_stb),
-      .sb_dat_i(sb_dat_i),.sb_ack_i(sb_ack),.sb_err_i(0),.sb_rty_i(0),
-      .sc_dat_o(sc_dat_o),.sc_adr_o(sc_adr),.sc_sel_o(sc_sel),.sc_we_o(sc_we),.sc_cyc_o(sc_cyc),.sc_stb_o(sc_stb),
-      .sc_dat_i(sc_dat_i),.sc_ack_i(sc_ack),.sc_err_i(0),.sc_rty_i(0),
-      .sd_dat_o(sd_dat_o),.sd_adr_o(sd_adr),.sd_sel_o(sd_sel),.sd_we_o(sd_we),.sd_cyc_o(sd_cyc),.sd_stb_o(sd_stb),
-      .sd_dat_i(sd_dat_i),.sd_ack_i(sd_ack),.sd_err_i(0),.sd_rty_i(0),
-      .se_dat_o(se_dat_o),.se_adr_o(se_adr),.se_sel_o(se_sel),.se_we_o(se_we),.se_cyc_o(se_cyc),.se_stb_o(se_stb),
-      .se_dat_i(se_dat_i),.se_ack_i(se_ack),.se_err_i(0),.se_rty_i(0),
-      .sf_dat_i(0),.sf_ack_i(0),.sf_err_i(0),.sf_rty_i(0)  );
-   
-   // ///////////////////////////////////////////////////////////////////
-   // RAM Loader
-
-   wire [31:0] 	 ram_loader_dat, iwb_dat;
-   wire [15:0] 	 ram_loader_adr, iwb_adr;
-   wire [3:0] 	 ram_loader_sel;
-   wire 	 ram_loader_stb, ram_loader_we, ram_loader_ack;
-   wire 	 iwb_ack, iwb_stb;
-   ram_loader #(.AWIDTH(16),.RAM_SIZE(RAM_SIZE))
-     ram_loader (.clk_i(wb_clk),.rst_i(ram_loader_rst),
-		 // CPLD Interface
-		 .cfg_clk_i(cpld_clk),
-		 .cfg_data_i(cpld_din),
-		 .start_o(cpld_start_int),
-		 .mode_o(cpld_mode_int),
-		 .done_o(cpld_done_int),
-		 .detached_i(cpld_detached),
-		 // Wishbone Interface
-		 .wb_dat_o(ram_loader_dat),.wb_adr_o(ram_loader_adr),
-		 .wb_stb_o(ram_loader_stb),.wb_cyc_o(),.wb_sel_o(ram_loader_sel),
-		 .wb_we_o(ram_loader_we),.wb_ack_i(ram_loader_ack),
-		 .ram_loader_done_o(ram_loader_done));
-
-   // /////////////////////////////////////////////////////////////////////////
-   // Processor
-   aeMB_core_BE #(.ISIZ(16),.DSIZ(16),.MUL(0),.BSF(1))
-     aeMB (.sys_clk_i(wb_clk), .sys_rst_i(wb_rst),
-	   // Instruction Wishbone bus to I-RAM
-	   .iwb_stb_o(iwb_stb),.iwb_adr_o(iwb_adr),
-	   .iwb_dat_i(iwb_dat),.iwb_ack_i(iwb_ack),
-	   // Data Wishbone bus to system bus fabric
-	   .dwb_we_o(m0_we),.dwb_stb_o(m0_stb),.dwb_dat_o(m0_dat_i),.dwb_adr_o(m0_adr),
-	   .dwb_dat_i(m0_dat_o),.dwb_ack_i(m0_ack),.dwb_sel_o(m0_sel),.dwb_cyc_o(m0_cyc),
-	   // Interrupts and exceptions
-	   .sys_int_i(proc_int),.sys_exc_i(bus_error) );
-   
-   assign 	 bus_error = m0_err | m0_rty;
-   
-   // /////////////////////////////////////////////////////////////////////////
-   // Dual Ported RAM -- D-Port is Slave #0 on main Wishbone
-   // I-port connects directly to processor and ram loader
-
-   wire 	 flush_icache;
-   ram_harv_cache #(.AWIDTH(15),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6))
-     sys_ram(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),
-	     
-	     .ram_loader_adr_i(ram_loader_adr[14:0]), .ram_loader_dat_i(ram_loader_dat),
-	     .ram_loader_stb_i(ram_loader_stb), .ram_loader_sel_i(ram_loader_sel),
-	     .ram_loader_we_i(ram_loader_we), .ram_loader_ack_o(ram_loader_ack),
-	     .ram_loader_done_i(ram_loader_done),
-	     
-	     .iwb_adr_i(iwb_adr[14:0]), .iwb_stb_i(iwb_stb),
-	     .iwb_dat_o(iwb_dat), .iwb_ack_o(iwb_ack),
-	     
-	     .dwb_adr_i(s0_adr[14:0]), .dwb_dat_i(s0_dat_o), .dwb_dat_o(s0_dat_i),
-	     .dwb_we_i(s0_we), .dwb_ack_o(s0_ack), .dwb_stb_i(s0_stb), .dwb_sel_i(s0_sel),
-	     .flush_icache(flush_icache));
-   
-   setting_reg #(.my_addr(7)) sr_icache (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-					 .in(set_data),.out(),.changed(flush_icache));
-
-   // /////////////////////////////////////////////////////////////////////////
-   // Buffer Pool, slave #1
-   wire 	 rd0_ready_i, rd0_ready_o;
-   wire 	 rd1_ready_i, rd1_ready_o;
-   wire 	 rd2_ready_i, rd2_ready_o;
-   wire 	 rd3_ready_i, rd3_ready_o;
-   wire [3:0] 	 rd0_flags, rd1_flags, rd2_flags, rd3_flags;
-   wire [31:0] 	 rd0_dat, rd1_dat, rd2_dat, rd3_dat;
-
-   wire 	 wr0_ready_i, wr0_ready_o;
-   wire 	 wr1_ready_i, wr1_ready_o;
-   wire 	 wr2_ready_i, wr2_ready_o;
-   wire 	 wr3_ready_i, wr3_ready_o;
-   wire [3:0] 	 wr0_flags, wr1_flags, wr2_flags, wr3_flags;
-   wire [31:0] 	 wr0_dat, wr1_dat, wr2_dat, wr3_dat;
-   
-   buffer_pool #(.BUF_SIZE(9), .SET_ADDR(64)) buffer_pool
-     (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),
-      .wb_we_i(s1_we),.wb_stb_i(s1_stb),.wb_adr_i(s1_adr),.wb_dat_i(s1_dat_o),   
-      .wb_dat_o(s1_dat_i),.wb_ack_o(s1_ack),.wb_err_o(),.wb_rty_o(),
-   
-      .stream_clk(dsp_clk), .stream_rst(dsp_rst),
-      .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
-      .status(status),.sys_int_o(buffer_int),
-
-      .s0(status_b0),.s1(status_b1),.s2(status_b2),.s3(status_b3),
-      .s4(status_b4),.s5(status_b5),.s6(status_b6),.s7(status_b7),
-
-      // Write Interfaces
-      .wr0_data_i(wr0_dat), .wr0_flags_i(wr0_flags), .wr0_ready_i(wr0_ready_i), .wr0_ready_o(wr0_ready_o),
-      .wr1_data_i(wr1_dat), .wr1_flags_i(wr1_flags), .wr1_ready_i(wr1_ready_i), .wr1_ready_o(wr1_ready_o),
-      .wr2_data_i(wr2_dat), .wr2_flags_i(wr2_flags), .wr2_ready_i(wr2_ready_i), .wr2_ready_o(wr2_ready_o),
-      .wr3_data_i(wr3_dat), .wr3_flags_i(wr3_flags), .wr3_ready_i(wr3_ready_i), .wr3_ready_o(wr3_ready_o),
-      // Read Interfaces
-      .rd0_data_o(rd0_dat), .rd0_flags_o(rd0_flags), .rd0_ready_i(rd0_ready_i), .rd0_ready_o(rd0_ready_o),
-      .rd1_data_o(rd1_dat), .rd1_flags_o(rd1_flags), .rd1_ready_i(rd1_ready_i), .rd1_ready_o(rd1_ready_o),
-      .rd2_data_o(rd2_dat), .rd2_flags_o(rd2_flags), .rd2_ready_i(rd2_ready_i), .rd2_ready_o(rd2_ready_o),
-      .rd3_data_o(rd3_dat), .rd3_flags_o(rd3_flags), .rd3_ready_i(rd3_ready_i), .rd3_ready_o(rd3_ready_o)
-      );
-
-   wire [31:0] 	 status_enc;
-   priority_enc priority_enc (.in({16'b0,status[15:0]}), .out(status_enc));
-   
-   // /////////////////////////////////////////////////////////////////////////
-   // SPI -- Slave #2
-   spi_top shared_spi
-     (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.wb_adr_i(s2_adr[4:0]),.wb_dat_i(s2_dat_o),
-      .wb_dat_o(s2_dat_i),.wb_sel_i(s2_sel),.wb_we_i(s2_we),.wb_stb_i(s2_stb),
-      .wb_cyc_i(s2_cyc),.wb_ack_o(s2_ack),.wb_err_o(),.wb_int_o(spi_int),
-      .ss_pad_o(sen),
-      .sclk_pad_o(sclk),.mosi_pad_o(mosi),.miso_pad_i(miso) );
-
-   // /////////////////////////////////////////////////////////////////////////
-   // I2C -- Slave #3
-   i2c_master_top #(.ARST_LVL(1)) 
-     i2c (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.arst_i(1'b0), 
-	  .wb_adr_i(s3_adr[4:2]),.wb_dat_i(s3_dat_o[7:0]),.wb_dat_o(s3_dat_i[7:0]),
-	  .wb_we_i(s3_we),.wb_stb_i(s3_stb),.wb_cyc_i(s3_cyc),
-	  .wb_ack_o(s3_ack),.wb_inta_o(i2c_int),
-	  .scl_pad_i(scl_pad_i),.scl_pad_o(scl_pad_o),.scl_padoen_o(scl_pad_oen_o),
-	  .sda_pad_i(sda_pad_i),.sda_pad_o(sda_pad_o),.sda_padoen_o(sda_pad_oen_o) );
-
-   assign 	 s3_dat_i[31:8] = 24'd0;
-   
-   // /////////////////////////////////////////////////////////////////////////
-   // GPIOs -- Slave #4
-   nsgpio nsgpio(.clk_i(wb_clk),.rst_i(wb_rst),
-		 .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[3:0]),.we_i(s4_we),
-		 .dat_i(s4_dat_o),.dat_o(s4_dat_i),.ack_o(s4_ack),
-		 .atr(atr_lines),.debug_0(debug_gpio_0),.debug_1(debug_gpio_1),
-		 .gpio( {io_tx,io_rx} ) );
-
-   // /////////////////////////////////////////////////////////////////////////
-   // Buffer Pool Status -- Slave #5   
-   
-   reg [31:0] 	 cycle_count;
-   always @(posedge wb_clk)
-     if(wb_rst)
-       cycle_count <= 0;
-     else
-       cycle_count <= cycle_count + 1;
-   
-   wb_readback_mux buff_pool_status
-     (.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s5_stb),
-      .wb_adr_i(s5_adr), .wb_dat_o(s5_dat_i), .wb_ack_o(s5_ack),
-      
-      .word00(status_b0),.word01(status_b1),.word02(status_b2),.word03(status_b3),
-      .word04(status_b4),.word05(status_b5),.word06(status_b6),.word07(status_b7),
-      .word08(status),.word09({sim_mode,31'b0}),.word10(32'b0),
-      .word11(32'b0),.word12(32'b0),.word13(irq),.word14(status_enc),.word15(cycle_count)
-      );
-
-   // /////////////////////////////////////////////////////////////////////////
-   // Settings Bus -- Slave #7
-   settings_bus settings_bus
-     (.wb_clk(wb_clk),.wb_rst(wb_rst),.wb_adr_i(s7_adr),.wb_dat_i(s7_dat_o),
-      .wb_stb_i(s7_stb),.wb_we_i(s7_we),.wb_ack_o(s7_ack),
-      .sys_clk(dsp_clk),.strobe(set_stb),.addr(set_addr),.data(set_data));
-   
-   assign 	 s7_dat_i = 32'd0;
-
-   // Output control lines
-   setting_reg #(.my_addr(0)) sr_clk (.clk(wb_clk),.rst(wb_rst),.strobe(s7_ack),.addr(set_addr),
-				      .in(set_data),.out(clock_outs),.changed());
-
-   // /////////////////////////////////////////////////////////////////////////
-   //  LEDS
-   //    register 8 determines whether leds are controlled by SW or not
-   //    1 = controlled by HW, 0 = by SW
-   //    In Rev3 there are only 6 leds, and the highest one is on the ETH connector
-   
-   wire [7:0] 	 led_hw = 0;
-      
-   setting_reg #(.my_addr(3)) sr_led (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-				      .in(set_data),.out(led_sw),.changed());
-   setting_reg #(.my_addr(8)) sr_led_src (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-					  .in(set_data),.out(led_src),.changed());
-
-   assign 	 leds = (led_src & led_hw) | (~led_src & led_sw);
-   
-   // /////////////////////////////////////////////////////////////////////////
-   // Interrupt Controller, Slave #8
-
-   assign irq= {{8'b0},
-		{8'b0},
-		{6'b0, uart_tx_int, uart_rx_int},
-		{pps_int,overrun,underrun,1'b0,i2c_int,spi_int,timer_int,buffer_int}};
-   
-   pic pic(.clk_i(wb_clk),.rst_i(wb_rst),.cyc_i(s8_cyc),.stb_i(s8_stb),.adr_i(s8_adr[3:2]),
-	   .we_i(s8_we),.dat_i(s8_dat_o),.dat_o(s8_dat_i),.ack_o(s8_ack),.int_o(proc_int),
-	   .irq(irq) );
- 	 
-   // /////////////////////////////////////////////////////////////////////////
-   // Master Timer, Slave #9
-
-   wire [31:0] 	 master_time;
-   timer timer
-     (.wb_clk_i(wb_clk),.rst_i(wb_rst),
-      .cyc_i(s9_cyc),.stb_i(s9_stb),.adr_i(s9_adr[4:2]),
-      .we_i(s9_we),.dat_i(s9_dat_o),.dat_o(s9_dat_i),.ack_o(s9_ack),
-      .sys_clk_i(dsp_clk),.master_time_i(master_time),.int_o(timer_int) );
-
-   // /////////////////////////////////////////////////////////////////////////
-   // UART, Slave #10
-
-   simple_uart #(.TXDEPTH(3),.RXDEPTH(3)) uart  // depth of 3 is 128 entries
-     (.clk_i(wb_clk),.rst_i(wb_rst),
-      .we_i(sa_we),.stb_i(sa_stb),.cyc_i(sa_cyc),.ack_o(sa_ack),
-      .adr_i(sa_adr[4:2]),.dat_i(sa_dat_o),.dat_o(sa_dat_i),
-      .rx_int_o(uart_rx_int),.tx_int_o(uart_tx_int),
-      .tx_o(uart_tx_o),.rx_i(uart_rx_i),.baud_o(uart_baud_o));
-   
-   // /////////////////////////////////////////////////////////////////////////
-   // ATR Controller, Slave #11
-
-   wire 	 run_rx, run_tx;
-   reg 		 run_rx_d1;
-   always @(posedge dsp_clk)
-     run_rx_d1 <= run_rx;
-   
-   atr_controller atr_controller
-     (.clk_i(wb_clk),.rst_i(wb_rst),
-      .adr_i(sb_adr[5:0]),.sel_i(sb_sel),.dat_i(sb_dat_o),.dat_o(sb_dat_i),
-      .we_i(sb_we),.stb_i(sb_stb),.cyc_i(sb_cyc),.ack_o(sb_ack),
-      .run_rx(run_rx_d1),.run_tx(run_tx),.ctrl_lines(atr_lines) );
-   
-   // //////////////////////////////////////////////////////////////////////////
-   // Time Sync, Slave #12 
-
-   reg 		 pps_posedge, pps_negedge, pps_pos_d1, pps_neg_d1;
-   always @(negedge dsp_clk) pps_negedge <= pps;
-   always @(posedge dsp_clk) pps_posedge <= pps;
-   always @(posedge dsp_clk) pps_pos_d1 <= pps_posedge;
-   always @(posedge dsp_clk) pps_neg_d1 <= pps_negedge;   
-   
-   wire 	 pps_o;
-   time_sync time_sync
-     (.wb_clk_i(wb_clk),.rst_i(wb_rst),
-      .cyc_i(sc_cyc),.stb_i(sc_stb),.adr_i(sc_adr[4:2]),
-      .we_i(sc_we),.dat_i(sc_dat_o),.dat_o(sc_dat_i),.ack_o(sc_ack),
-      .sys_clk_i(dsp_clk),.master_time_o(master_time),
-      .pps_posedge(pps_posedge),.pps_negedge(pps_negedge),
-      .exp_pps_in(),.exp_pps_out(),
-      .int_o(pps_int),.epoch_o(epoch),.pps_o(pps_o) );
-
-   // /////////////////////////////////////////////////////////////////////////
-   // DSP
-   wire [31:0] 	 sample_rx, sample_tx;
-   wire 	 strobe_rx, strobe_tx;
-
-   rx_control #(.FIFOSIZE(10)) rx_control
-     (.clk(dsp_clk), .rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .master_time(master_time),.overrun(overrun),
-      .wr_dat_o(wr1_dat), .wr_flags_o(wr1_flags), .wr_ready_o(wr1_ready_i), .wr_ready_i(wr1_ready_o),
-      .sample(sample_rx), .run(run_rx), .strobe(strobe_rx),
-      .fifo_occupied(dsp_rx_occ),.fifo_full(dsp_rx_full),.fifo_empty(dsp_rx_empty),
-      .debug_rx(debug_rx) );
-   
-   dsp_core_rx dsp_core_rx
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .adc_a(adc_a),.adc_ovf_a(adc_ovf_a),.adc_b(adc_b),.adc_ovf_b(adc_ovf_b),
-      .sample(sample_rx), .run(run_rx_d1), .strobe(strobe_rx),
-      .debug(debug_rx_dsp) );
-
-   tx_control #(.FIFOSIZE(10)) tx_control
-     (.clk(dsp_clk), .rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .master_time(master_time),.underrun(underrun),
-      .rd_dat_i(rd1_dat), .rd_flags_i(rd1_flags), .rd_ready_i(rd1_ready_o), .rd_ready_o(rd1_ready_i),
-      .sample(sample_tx), .run(run_tx), .strobe(strobe_tx),
-      .fifo_occupied(dsp_tx_occ),.fifo_full(dsp_tx_full),.fifo_empty(dsp_tx_empty),
-      .debug(debug_txc) );
-   
-   dsp_core_tx dsp_core_tx
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .dac_a(dac_a),.dac_b(dac_b),
-      .sample(sample_tx), .run(run_tx), .strobe(strobe_tx), .debug(debug_tx_dsp) );
-
-   assign dsp_rst = wb_rst;
-
-   // /////////////////////////////////////////////////////////////////////////////////////////
-   // CODEC Interface
-
-   assign txblank = 0;
-
-   always @(posedge dsp_clk)
-     if(tx_strobe)
-       begin
-	  dac <= dac_a;
-	  txsync <= 0;
-       end
-     else
-       begin
-	  dac <= dac_b;
-	  txsync <= 1;
-       end
-
-   always @(posedge dsp_clk)
-     if(rxsync)
-       begin
-	  adc_a_hold <= adc;
-	  rx_strobe <= 0;
-       end
-     else
-       begin
-	  adc_a <= adc_a_hold;
-	  adc_b <= adc;
-	  rx_strobe <= 1;
-       end
-	 
-   // /////////////////////////////////////////////////////////////////////////////////////////
-   // Debug Pins
-   
-   assign  debug_clk[0]  = 0;
-   assign  debug_clk[1]  = 0;
-   assign debug = 0;
-   
-   
-endmodule // u1_core
diff --git a/usrp2/top/u1plus/Makefile b/usrp2/top/u1plus/Makefile
index 8a7c7856d..684b7bcd7 100644
--- a/usrp2/top/u1plus/Makefile
+++ b/usrp2/top/u1plus/Makefile
@@ -54,7 +54,7 @@ simulator "ISE Simulator (VHDL/Verilog)" \
 export SOURCE_ROOT := ../../../
 export SOURCES := \
 control_lib/CRC16_D16.v \
-control_lib/atr_controller.v \
+control_lib/atr_controller16.v \
 control_lib/bin2gray.v \
 control_lib/dcache.v \
 control_lib/decoder_3_8.v \
@@ -64,12 +64,13 @@ control_lib/gray_send.v \
 control_lib/icache.v \
 control_lib/mux4.v \
 control_lib/mux8.v \
-control_lib/nsgpio.v \
+control_lib/nsgpio16LE.v \
 control_lib/ram_2port.v \
+control_lib/ram_2port_mixed_width.v \
 control_lib/ram_harv_cache.v \
 control_lib/ram_loader.v \
 control_lib/setting_reg.v \
-control_lib/settings_bus.v \
+control_lib/settings_bus_16LE.v \
 control_lib/srl.v \
 control_lib/system_control.v \
 control_lib/wb_1master.v \
@@ -92,6 +93,13 @@ control_lib/newfifo/fifo_short.v \
 control_lib/newfifo/fifo_long.v \
 control_lib/newfifo/fifo_cascade.v \
 control_lib/newfifo/fifo36_to_ll8.v \
+control_lib/newfifo/fifo36_to_fifo19.v \
+control_lib/newfifo/fifo19_to_fifo36.v \
+control_lib/newfifo/packet_generator.v \
+control_lib/newfifo/packet_verifier.v \
+control_lib/newfifo/packet_generator32.v \
+control_lib/newfifo/packet_verifier32.v \
+control_lib/newfifo/fifo_pacer.v \
 control_lib/longfifo.v \
 control_lib/shortfifo.v \
 control_lib/medfifo.v \
@@ -122,8 +130,7 @@ opencores/simple_pic/rtl/simple_pic.v \
 opencores/spi/rtl/verilog/spi_clgen.v \
 opencores/spi/rtl/verilog/spi_defines.v \
 opencores/spi/rtl/verilog/spi_shift.v \
-opencores/spi/rtl/verilog/spi_top.v \
-opencores/spi/rtl/verilog/timescale.v \
+opencores/spi/rtl/verilog/spi_top16.v \
 sdr_lib/acc.v \
 sdr_lib/add2.v \
 sdr_lib/add2_and_round.v \
@@ -139,7 +146,7 @@ sdr_lib/clip_reg.v \
 sdr_lib/cordic.v \
 sdr_lib/cordic_z24.v \
 sdr_lib/cordic_stage.v \
-sdr_lib/dsp_core_rx.v \
+sdr_lib/dsp_core_rx_udp.v \
 sdr_lib/dsp_core_tx.v \
 sdr_lib/hb_dec.v \
 sdr_lib/hb_interp.v \
@@ -160,7 +167,13 @@ timing/time_receiver.v \
 timing/time_sender.v \
 timing/time_sync.v \
 timing/timer.v \
-top/u1_core/u1_core.v \
+timing/time_64bit.v \
+vrt/vita_rx_control.v \
+vrt/vita_rx_framer.v \
+vrt/vita_tx_control.v \
+vrt/vita_tx_deframer.v \
+timing/time_compare.v \
+top/u1plus/u1plus_core.v \
 top/u1plus/u1plus.ucf \
 top/u1plus/timing.ucf \
 top/u1plus/u1plus.v 
@@ -204,7 +217,8 @@ export GEN_PROG_FILE_PROPERTIES := \
 "Create Binary Configuration File" TRUE \
 "Done (Output Events)" 5 \
 "Enable Bitstream Compression" TRUE \
-"Enable Outputs (Output Events)" 6 
+"Enable Outputs (Output Events)" 6 \
+"Unused IOB Pins" "Pull Up"
 
 export SIM_MODEL_PROPERTIES := ""
 
diff --git a/usrp2/top/u1plus/u1plus.ucf b/usrp2/top/u1plus/u1plus.ucf
index 8a22d0966..cd89878e3 100644
--- a/usrp2/top/u1plus/u1plus.ucf
+++ b/usrp2/top/u1plus/u1plus.ucf
@@ -18,14 +18,14 @@ NET "cgen_ref_sel"  LOC = "T2"  ;
 NET "cgen_sync_b"  LOC = "H15"  ;
 
 ## FPGA Config
-NET "fpga_cfg_din"  LOC = "T14"  ;
-NET "fpga_cfg_cclk"  LOC = "R14"  ;
-NET "fpga_cfg_init_b"  LOC = "T12"  ;
+#NET "fpga_cfg_din"  LOC = "T14"  ;
+#NET "fpga_cfg_cclk"  LOC = "R14"  ;
+#NET "fpga_cfg_init_b"  LOC = "T12"  ;
 
 ## MISC
-NET "mystery_bus<2>"  LOC = "T11"  ;
-NET "mystery_bus<1>"  LOC = "C4"  ;
-NET "mystery_bus<0>"  LOC = "E7"  ;
+#NET "mystery_bus<2>"  LOC = "T11"  ;
+#NET "mystery_bus<1>"  LOC = "C4"  ;
+#NET "mystery_bus<0>"  LOC = "E7"  ;
 NET "reset_n"  LOC = "D5"  ;
 NET "PPS_IN"  LOC = "M14"  ;
 NET "reset_codec"  LOC = "B14"  ;
@@ -175,9 +175,9 @@ NET "io_rx<14>"  LOC = "A14"  ;
 NET "io_rx<15>"  LOC = "A13"  ;
 
 ## SPI
-NET "SEN_AUX"  LOC = "C12"  ;
-NET "SCLK_AUX"  LOC = "D12"  ;
-NET "MISO_AUX"  LOC = "J5"  ;
+#NET "SEN_AUX"  LOC = "C12"  ;
+#NET "SCLK_AUX"  LOC = "D12"  ;
+#NET "MISO_AUX"  LOC = "J5"  ;
 NET "SCLK_CODEC"  LOC = "K3"  ;
 NET "SEN_CODEC"  LOC = "D13"  ;
 NET "MOSI_CODEC"  LOC = "C13"  ;
diff --git a/usrp2/top/u1plus/u1plus.v b/usrp2/top/u1plus/u1plus.v
index cb5fbdd36..6ed478420 100644
--- a/usrp2/top/u1plus/u1plus.v
+++ b/usrp2/top/u1plus/u1plus.v
@@ -1,141 +1,153 @@
+`timescale 1ns / 1ps
+//////////////////////////////////////////////////////////////////////////////////
 
 module u1plus
-  (input CLK_FPGA_P, input CLK_FPGA_N, // Main Clock
-   output FPGA_TXD, input FPGA_RXD,   // UART
-   inout SDA_FPGA, inout SCL_FPGA,   // I2C
+  (input CLK_FPGA_P, input CLK_FPGA_N,  // Diff
+   output [2:0] debug_led, output [31:0] debug, output [1:0] debug_clk,
+   output FPGA_TXD, input FPGA_RXD,
 
-   // CGEN
-   input cgen_st_ld,
-   input cgen_st_refmon,
-   input cgen_st_status,
-   input cgen_ref_sel,
-   input cgen_sync_b,
-   
-   // FPGA Config
-   input fpga_cfg_din,
-   input fpga_cfg_cclk,
-   input fpga_cfg_init_b,
-   
-   // MISC
-   input [2:0] mystery_bus,
-   input reset_n,
-   input PPS_IN,
-   output reset_codec,
-   
    // GPIF
-   inout [15:0] GPIF_D,   
-   input [3:0] GPIF_CTL,   
-   output [3:0] GPIF_RDY,
-   input FX2_PA7_FLAGD,
-   input FX2_PA6_PKTEND,
-   input FX2_PA2_SLOE,
+   inout [15:0] GPIF_D, input [3:0] GPIF_CTL, output [3:0] GPIF_RDY,
+   input FX2_PA7_FLAGD, input FX2_PA6_PKTEND, input FX2_PA2_SLOE,
    input IFCLK,
    
-   output [2:0] debug_led,
+   inout SDA_FPGA, inout SCL_FPGA, // I2C
 
-   // Debug bus
-   output [1:0] debug_clk,
-   output [31:0] debug,
-   
-   input [11:0] adc,
-   input RXSYNC,
-   
-   output TXBLANK,
-   output TXSYNC,
-   output [13:0] dac,
+   output SCLK_TX_DB, output SEN_TX_DB, output MOSI_TX_DB, input MISO_TX_DB,   // DB TX SPI
+   output SCLK_RX_DB, output SEN_RX_DB, output MOSI_RX_DB, input MISO_RX_DB,   // DB TX SPI
+   output SCLK_CODEC, output SEN_CODEC, output MOSI_CODEC, input MISO_CODEC,   // AD9862 main SPI
 
-   // TX DB
-   inout [15:0] io_tx,
-   inout [15:0] io_rx,
+   input cgen_st_status, input cgen_st_ld, input cgen_st_refmon, output cgen_sync_b, output cgen_ref_sel,
+   
+   inout [15:0] io_tx, inout [15:0] io_rx,
 
-   // SPI
-   output SEN_AUX, output SCLK_AUX, input MISO_AUX,
-   output SEN_CODEC, output SCLK_CODEC, output MOSI_CODEC, input MISO_CODEC,
-   output SEN_RX_DB, output SCLK_RX_DB, output MOSI_RX_DB, input MISO_RX_DB,
-   output SEN_TX_DB, output SCLK_TX_DB, output MOSI_TX_DB, input MISO_TX_DB
+   output [13:0] dac, output TXSYNC, output TXBLANK,
+   input [11:0] adc, input RXSYNC,
+  
+   input PPS_IN
    );
 
-   wire   clk_fpga, sys_clk, wb_clk, dcm_out, clk_div, dcm_locked;
+   // /////////////////////////////////////////////////////////////////////////
+   // Clocking
+   wire  clk_fpga, clk_fpga_in, reset;
+   
+   IBUFGDS #(.IOSTANDARD("LVDS_33"), .DIFF_TERM("TRUE")) 
+   clk_fpga_pin (.O(clk_fpga_in),.I(CLK_FPGA_P),.IB(CLK_FPGA_N));
+
+   BUFG clk_fpga_BUFG (.I(clk_fpga_in), .O(clk_fpga));
    
-   IBUFGDS clk_fpga_pin (.O(clk_fpga),.I(CLK_FPGA_P),.IB(CLK_FPGA_N));
-   defparam 	clk_fpga_pin.IOSTANDARD = "LVPECL_25";
+   reset_sync reset_sync(.clk(clk_fpga), .reset_in(~reset_n), .reset_out(reset));
    
-   DCM DCM_INST (.CLKFB(sys_clk), 
-                 .CLKIN(clk_fpga), 
-                 .DSSEN(0), 
-                 .PSCLK(0), 
-                 .PSEN(0), 
-                 .PSINCDEC(0), 
-                 .RST(dcm_rst), 
-                 .CLKDV(clk_div), 
-                 .CLKFX(), 
-                 .CLKFX180(), 
-                 .CLK0(dcm_out), 
-                 .CLK2X(), 
-                 .CLK2X180(), 
-                 .CLK90(), 
-                 .CLK180(), 
-                 .CLK270(), 
-                 .LOCKED(dcm_locked), 
-                 .PSDONE(), 
-                 .STATUS());
-   defparam DCM_INST.CLK_FEEDBACK = "1X";
-   defparam DCM_INST.CLKDV_DIVIDE = 2.0;
-   defparam DCM_INST.CLKFX_DIVIDE = 1;
-   defparam DCM_INST.CLKFX_MULTIPLY = 4;
-   defparam DCM_INST.CLKIN_DIVIDE_BY_2 = "FALSE";
-   defparam DCM_INST.CLKIN_PERIOD = 15.625;
-   defparam DCM_INST.CLKOUT_PHASE_SHIFT = "NONE";
-   defparam DCM_INST.DESKEW_ADJUST = "SYSTEM_SYNCHRONOUS";
-   defparam DCM_INST.DFS_FREQUENCY_MODE = "LOW";
-   defparam DCM_INST.DLL_FREQUENCY_MODE = "LOW";
-   defparam DCM_INST.DUTY_CYCLE_CORRECTION = "TRUE";
-   defparam DCM_INST.FACTORY_JF = 16'h8080;
-   defparam DCM_INST.PHASE_SHIFT = 0;
-   defparam DCM_INST.STARTUP_WAIT = "FALSE";
+   // /////////////////////////////////////////////////////////////////////////
+   // SPI
+   wire  mosi, sclk, miso;
+   assign { SCLK_TX_DB, MOSI_TX_DB } = ~SEN_TX_DB ? {sclk,mosi} : 2'b0;
+   assign { SCLK_RX_DB, MOSI_RX_DB } = ~SEN_RX_DB ? {sclk,mosi} : 2'b0;
+   assign { SCLK_CODEC, MOSI_CODEC } = ~SEN_CODEC ? {sclk,mosi} : 2'b0;
+   assign miso = (~SEN_TX_DB & MISO_TX_DB) | (~SEN_RX_DB & MISO_RX_DB) |
+		 (~SEN_CODEC & MISO_CODEC);
+
+   // /////////////////////////////////////////////////////////////////////////
+   // TX DAC -- handle the interleaved data bus to DAC, with clock doubling DLL
+
+   assign TXBLANK = 0;
+   wire [13:0] tx_i, tx_q;
 
-   BUFG sysclk_BUFG (.I(dcm_out), .O(sys_clk));
-   BUFG wbclk_BUFG (.I(clk_div), .O(wb_clk));
+   genvar i;
+   generate
+      for(i=0;i<14;i=i+1)
+	begin : gen_dacout
+	   ODDR2 #(.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1" 
+		   .INIT(1'b0),            // Sets initial state of the Q output to 1'b0 or 1'b1
+		   .SRTYPE("SYNC"))        // Specifies "SYNC" or "ASYNC" set/reset
+	   ODDR2_inst (.Q(dac[i]),      // 1-bit DDR output data
+		       .C0(clk_fpga),  // 1-bit clock input
+		       .C1(~clk_fpga), // 1-bit clock input
+		       .CE(1'b1),      // 1-bit clock enable input
+		       .D0(tx_i[i]),   // 1-bit data input (associated with C0)
+		       .D1(tx_q[i]),   // 1-bit data input (associated with C1)
+		       .R(1'b0),       // 1-bit reset input
+		       .S(1'b0));      // 1-bit set input
+	end // block: gen_dacout
+      endgenerate
+   ODDR2 #(.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1" 
+	   .INIT(1'b0),            // Sets initial state of the Q output to 1'b0 or 1'b1
+	   .SRTYPE("SYNC"))        // Specifies "SYNC" or "ASYNC" set/reset
+   ODDR2_txsnc (.Q(TXSYNC),      // 1-bit DDR output data
+		.C0(clk_fpga),  // 1-bit clock input
+		.C1(~clk_fpga), // 1-bit clock input
+		.CE(1'b1),      // 1-bit clock enable input
+		.D0(1'b0),   // 1-bit data input (associated with C0)
+		.D1(1'b1),   // 1-bit data input (associated with C1)
+		.R(1'b0),       // 1-bit reset input
+		.S(1'b0));      // 1-bit set input
 
-   IOBUF scl_pin(.O(scl_pad_i), .IO(SCL), .I(scl_pad_o), .T(scl_pad_oen_o));
-   IOBUF sda_pin(.O(sda_pad_i), .IO(SDA), .I(sda_pad_o), .T(sda_pad_oen_o));
+   // /////////////////////////////////////////////////////////////////////////
+   // RX ADC -- handles deinterleaving
 
-   wire   mosi, miso, sclk;
-   assign SCLK_AUX = ~SEN_AUX ? sclk : 2'b00;
-   assign {SCLK_CODEC,MOSI_CODEC} = ~SEN_CODEC ? {sclk,mosi} : 2'b00;
-   assign {SCLK_TX_DB,MOSI_TX_DB} = ~SEN_TX_DB ? {sclk,mosi} : 2'b00;
-   assign {SCLK_RX_DB,MOSI_RX_DB} = ~SEN_RX_DB ? {sclk,mosi} : 2'b00;
-   assign miso = (~SEN_CODEC & MISO_CODEC) | (~SEN_AUX & MISO_AUX) |
-		 (~SEN_RX_DB & MISO_RX_DB) |(~SEN_TX_DB & MISO_TX_DB);
+   reg [11:0] rx_i, rx_q;
+   wire [11:0] rx_a, rx_b;
    
-   u1_core u1_core
-     (.sys_clk(sys_clk), .sys_rst(sys_rst),
-      .wb_clk(wb_clk), .wb_rst(wb_rst),
-      .uart_tx_o(FPGA_TXD), .uart_rx_i(FPGA_RXD), .uart_baud_o(),
-      
-      .leds(debug_led), .debug(debug), .debug_clk(debug_clk),
-      
-      .scl_pad_i(scl_pad_i), .scl_pad_o(scl_pad_o), .scl_pad_oen_o(scl_pad_oen_o),
-      .sda_pad_i(sda_pad_i), .sda_pad_o(sda_pad_o), .sda_pad_oen_o(sda_pad_oen_o),
-      
-      .pps(PPS_IN),
-      .reset_codec(reset_codec),
-      
-      // GPIF
-      .gpif_clk(IFCLK), .gpif_d(GPIF_D), .gpif_ctl(GPIF_CTL), .gpif_rdy(GPIF_RDY),
-      .gpif_misc({FX2_PA7_FLAGD, FX2_PA6_PKTEND, FX2_PA2_SLOE}),
-      
-      .adc(adc), .rxsync(RXSYNC),
-      
-      .txblank(TXBLANK), .txsync(TXSYNC), .dac(dac),
-      
-      .io_tx(io_tx), .io_rx(io_rx),
-      
-      // SPI
-      .sclk(sclk), .mosi(mosi), .miso(miso), .sen({SEN_AUX, SEN_CODEC, SEN_RX_DB, SEN_TX_DB}),
-      .sim_mode(0)
-      );
+   genvar      j;
+   generate
+      for(j=0;j<12;j=j+1)
+	begin : gen_adcin
+	   IDDR2 #(.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1"
+		   .INIT_Q0(1'b0),         // Sets initial state of the Q0 output to 1’b0 or 1’b1
+		   .INIT_Q1(1'b0),         // Sets initial state of the Q1 output to 1’b0 or 1’b1
+		   .SRTYPE("SYNC"))        // Specifies "SYNC" or "ASYNC" set/reset
+	   IDDR2_inst (.Q0(rx_a[j]),      // 1-bit output captured with C0 clock
+		       .Q1(rx_b[j]),      // 1-bit output captured with C1 clock
+		       .C0(clk_fpga),     // 1-bit clock input
+		       .C1(~clk_fpga),    // 1-bit clock input
+		       .CE(1'b1),         // 1-bit clock enable input
+		       .D(adc[j]),        // 1-bit DDR data input
+		       .R(1'b0),          // 1-bit reset input
+		       .S(1'b0));         // 1-bit set input
+	end // block: gen_adcin
+   endgenerate
+   
+   IDDR2 #(.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1"
+	   .INIT_Q0(1'b0),         // Sets initial state of the Q0 output to 1’b0 or 1’b1
+	   .INIT_Q1(1'b0),         // Sets initial state of the Q1 output to 1’b0 or 1’b1
+	   .SRTYPE("SYNC"))        // Specifies "SYNC" or "ASYNC" set/reset
+   IDDR2_sync (.Q0(rxsync_0),      // 1-bit output captured with C0 clock
+	       .Q1(rxsync_1),      // 1-bit output captured with C1 clock
+	       .C0(clk_fpga),     // 1-bit clock input
+	       .C1(~clk_fpga),    // 1-bit clock input
+	       .CE(1'b1),         // 1-bit clock enable input
+	       .D(RXSYNC),        // 1-bit DDR data input
+	       .R(1'b0),          // 1-bit reset input
+	       .S(1'b0));         // 1-bit set input
 
-endmodule // u1plus
+   always @(posedge clk_fpga)
+     if(rxsync_0)
+       begin
+	  rx_i <= rx_a;
+	  rx_q <= rx_b;
+       end
+     else
+       begin
+	  rx_i <= rx_b;
+	  rx_q <= rx_a;
+       end
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // Main U1E Core
+   u1plus_core u1p_c(.clk_fpga(clk_fpga), .rst_fpga(reset),
+		     .debug_led(debug_led), .debug(debug), .debug_clk(debug_clk),
+		     .debug_txd(FPGA_TXD), .debug_rxd(FPGA_RXD),
+		     .gpif_d(GPIF_D), .gpif_ctl(GPIF_CTL), .gpif_rdy(GPIF_RDY),
+		     .gpif_misc({FX2_PA7_FLAGD,FX_PA6_PKTEND,FX2_PA2_SLOE}),
+		     .gpif_clk(IFCLK),
 
+		     .db_sda(db_sda), .db_scl(db_scl),
+		     .sclk(sclk), .sen({SEN_CODEC,SEN_TX_DB,SEN_RX_DB}), .mosi(mosi), .miso(miso),
+		     .cgen_st_status(cgen_st_status), .cgen_st_ld(cgen_st_ld),.cgen_st_refmon(cgen_st_refmon), 
+		     .cgen_sync_b(cgen_sync_b), .cgen_ref_sel(cgen_ref_sel),
+		     .io_tx(io_tx), .io_rx(io_rx),
+		     .tx_i(tx_i), .tx_q(tx_q), 
+		     .rx_i(rx_i), .rx_q(rx_q),
+		     .pps_in(PPS_IN) );
 
+endmodule // u1plus
diff --git a/usrp2/top/u1plus/u1plus_core.v b/usrp2/top/u1plus/u1plus_core.v
new file mode 100644
index 000000000..bcfb0a5fe
--- /dev/null
+++ b/usrp2/top/u1plus/u1plus_core.v
@@ -0,0 +1,424 @@
+
+
+//`define LOOPBACK 1
+//`define TIMED 1
+`define DSP 1
+
+module u1plus_core
+  (input clk_fpga, input rst_fpga,
+   output [2:0] debug_led, output [31:0] debug, output [1:0] debug_clk,
+   output debug_txd, input debug_rxd,
+   
+   // GPIF
+   inout [15:0] gpif_d, input [3:0] gpif_ctl, output [3:0] gpif_rdy,
+   input [2:0] gpif_misc, input gpif_clk,
+   
+   inout db_sda, inout db_scl,
+   output sclk, output [7:0] sen, output mosi, input miso,
+
+   input cgen_st_status, input cgen_st_ld, input cgen_st_refmon, output cgen_sync_b, output cgen_ref_sel,   
+   inout [15:0] io_tx, inout [15:0] io_rx, 
+   output [13:0] tx_i, output [13:0] tx_q, 
+   input [11:0] rx_i, input [11:0] rx_q, 
+   input pps_in
+   );
+
+   localparam TXFIFOSIZE = 11;
+   localparam RXFIFOSIZE = 11;
+
+   localparam SR_RX_DSP = 0;    // 5 regs
+   localparam SR_RX_CTRL = 8;   // 9 regs
+   localparam SR_TX_DSP = 17;   // 5 regs
+   localparam SR_TX_CTRL = 24;  // 2 regs
+   localparam SR_TIME64 = 28;    // 4 regs
+      
+   wire 	wb_clk = clk_fpga;
+   wire 	wb_rst = rst_fpga;
+   
+   wire 	pps_int;
+   wire [63:0] 	vita_time;
+   reg [15:0] 	reg_leds, reg_cgen_ctrl, reg_test, xfer_rate;
+   
+   wire [7:0] 	set_addr;
+   wire [31:0] 	set_data;
+   wire 	set_stb;
+
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // GPMC Slave to Wishbone Master
+   localparam dw = 16;
+   localparam aw = 11;
+   localparam sw = 2;
+   
+   wire [dw-1:0] m0_dat_mosi, m0_dat_miso;
+   wire [aw-1:0] m0_adr;
+   wire [sw-1:0] m0_sel;
+   wire 	 m0_cyc, m0_stb, m0_we, m0_ack, m0_err, m0_rty;
+
+   wire [31:0] 	 debug_gpmc;
+
+   wire [35:0] 	 tx_data, rx_data;
+   wire 	 tx_src_rdy, tx_dst_rdy, rx_src_rdy, rx_dst_rdy;
+   reg [15:0] 	 tx_frame_len;
+   wire [15:0] 	 rx_frame_len;
+   wire [7:0] 	 rate;
+
+   wire 	 bus_error;
+   
+   gpif #(.TXFIFOSIZE(TXFIFOSIZE), .RXFIFOSIZE(RXFIFOSIZE))
+   gpif (.arst(wb_rst),
+	 .EM_CLK(EM_CLK), .EM_D(EM_D), .EM_A(EM_A), .EM_NBE(EM_NBE),
+	 .EM_WAIT0(EM_WAIT0), .EM_NCS4(EM_NCS4), .EM_NCS6(EM_NCS6), .EM_NWE(EM_NWE), 
+	 .EM_NOE(EM_NOE),
+	 
+	 .rx_have_data(rx_have_data), .tx_have_space(tx_have_space),
+	 .bus_error(bus_error), .bus_reset(0),
+	 
+	 .wb_clk(wb_clk), .wb_rst(wb_rst),
+	 .wb_adr_o(m0_adr), .wb_dat_mosi(m0_dat_mosi), .wb_dat_miso(m0_dat_miso),
+	 .wb_sel_o(m0_sel), .wb_cyc_o(m0_cyc), .wb_stb_o(m0_stb), .wb_we_o(m0_we),
+	 .wb_ack_i(m0_ack),
+	 
+	 .fifo_clk(wb_clk), .fifo_rst(wb_rst),
+	 .tx_data_o(tx_data), .tx_src_rdy_o(tx_src_rdy), .tx_dst_rdy_i(tx_dst_rdy),
+	 .rx_data_i(rx_data), .rx_src_rdy_i(rx_src_rdy), .rx_dst_rdy_o(rx_dst_rdy),
+	 
+	 .tx_frame_len(tx_frame_len), .rx_frame_len(rx_frame_len),
+	 .debug(debug_gpmc));
+
+   wire 	 rx_sof = rx_data[32];
+   wire 	 rx_eof = rx_data[33];
+   wire 	 rx_src_rdy_int, rx_dst_rdy_int, tx_src_rdy_int, tx_dst_rdy_int;
+   
+`ifdef LOOPBACK
+   fifo_cascade #(.WIDTH(36), .SIZE(9)) loopback_fifo
+     (.clk(wb_clk), .reset(wb_rst), .clear(0),
+      .datain(tx_data), .src_rdy_i(tx_src_rdy), .dst_rdy_o(tx_dst_rdy),
+      .dataout(rx_data), .src_rdy_o(rx_src_rdy), .dst_rdy_i(rx_dst_rdy));
+`endif // LOOPBACK
+
+`ifdef TIMED
+
+   // TX side
+   wire 	 tx_enable;
+   
+   fifo_pacer tx_pacer
+     (.clk(wb_clk), .reset(wb_rst), .rate(rate), .enable(tx_enable),
+      .src1_rdy_i(tx_src_rdy), .dst1_rdy_o(tx_dst_rdy),
+      .src2_rdy_o(tx_src_rdy_int), .dst2_rdy_i(tx_dst_rdy_int),
+      .underrun(tx_underrun), .overrun());
+   
+   packet_verifier32 pktver32
+     (.clk(wb_clk), .reset(wb_rst), .clear(clear),
+      .data_i(tx_data), .src_rdy_i(tx_src_rdy_int), .dst_rdy_o(tx_dst_rdy_int),
+      .total(total), .crc_err(crc_err), .seq_err(seq_err), .len_err(len_err));
+
+   // RX side
+   wire 	 rx_enable;
+
+   packet_generator32 pktgen32
+     (.clk(wb_clk), .reset(wb_rst), .clear(clear),
+      .data_o(rx_data), .src_rdy_o(rx_src_rdy_int), .dst_rdy_i(rx_dst_rdy_int));
+
+   fifo_pacer rx_pacer
+     (.clk(wb_clk), .reset(wb_rst), .rate(rate), .enable(rx_enable),
+      .src1_rdy_i(rx_src_rdy_int), .dst1_rdy_o(rx_dst_rdy_int),
+      .src2_rdy_o(rx_src_rdy), .dst2_rdy_i(rx_dst_rdy),
+      .underrun(), .overrun(rx_overrun));
+   
+`endif //  `ifdef TIMED
+
+`ifdef DSP
+   wire [31:0] 	 debug_rx_dsp, vrc_debug, vrf_debug;
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // DSP RX
+   wire [31:0] 	 sample_rx, sample_tx;
+   wire 	 strobe_rx, strobe_tx;
+   wire 	 rx1_dst_rdy, rx1_src_rdy;
+   wire [99:0] 	 rx1_data;
+   wire 	 run_rx;
+   
+   
+   dsp_core_rx #(.BASE(SR_RX_DSP)) dsp_core_rx
+     (.clk(wb_clk),.rst(wb_rst),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .adc_a({rx_i,2'b0}),.adc_ovf_a(0),.adc_b({rx_q,2'b0}),.adc_ovf_b(0),
+      .sample(sample_rx), .run(run_rx), .strobe(strobe_rx),
+      .debug(debug_rx_dsp) );
+
+   vita_rx_control #(.BASE(SR_RX_CTRL), .WIDTH(32)) vita_rx_control
+     (.clk(wb_clk), .reset(wb_rst), .clear(0),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .vita_time(vita_time), .overrun(overrun),
+      .sample(sample_rx), .run(run_rx), .strobe(strobe_rx),
+      .sample_fifo_o(rx1_data), .sample_fifo_dst_rdy_i(rx1_dst_rdy), .sample_fifo_src_rdy_o(rx1_src_rdy),
+      .debug_rx(vrc_debug));
+
+   vita_rx_framer #(.BASE(SR_RX_CTRL), .MAXCHAN(1)) vita_rx_framer
+     (.clk(wb_clk), .reset(wb_rst), .clear(0),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .sample_fifo_i(rx1_data), .sample_fifo_dst_rdy_o(rx1_dst_rdy), .sample_fifo_src_rdy_i(rx1_src_rdy),
+      .data_o(rx_data), .dst_rdy_i(rx_dst_rdy), .src_rdy_o(rx_src_rdy),
+      .fifo_occupied(), .fifo_full(), .fifo_empty(),
+      .debug_rx(vrf_debug) );
+
+   // ///////////////////////////////////////////////////////////////////////////////////
+   // DSP TX
+
+   wire [99:0] 	 tx1_data;
+   wire 	 tx1_src_rdy, tx1_dst_rdy;
+   wire [15:0] 	 tx_i_int, tx_q_int;
+   wire [31:0] 	 debug_vtc, debug_vtd, debug_vt;
+   wire 	 run_tx;
+   
+   vita_tx_deframer #(.BASE(SR_TX_CTRL), .MAXCHAN(1)) vita_tx_deframer
+     (.clk(wb_clk), .reset(wb_rst), .clear(0),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .data_i(tx_data), .src_rdy_i(tx_src_rdy), .dst_rdy_o(tx_dst_rdy),
+      .sample_fifo_o(tx1_data), .sample_fifo_src_rdy_o(tx1_src_rdy), .sample_fifo_dst_rdy_i(tx1_dst_rdy),
+      .debug(debug_vtd) );
+
+   vita_tx_control #(.BASE(SR_TX_CTRL), .WIDTH(32)) vita_tx_control
+     (.clk(wb_clk), .reset(wb_rst), .clear(0),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .vita_time(vita_time),.underrun(underrun),
+      .sample_fifo_i(tx1_data), .sample_fifo_src_rdy_i(tx1_src_rdy), .sample_fifo_dst_rdy_o(tx1_dst_rdy),
+      .sample(sample_tx), .run(run_tx), .strobe(strobe_tx),
+      .debug(debug_vtc) );
+   
+   dsp_core_tx #(.BASE(SR_TX_DSP)) dsp_core_tx
+     (.clk(wb_clk),.rst(wb_rst),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .sample(sample_tx), .run(run_tx), .strobe(strobe_tx),
+      .dac_a(tx_i_int),.dac_b(tx_q_int),
+      .debug(debug_tx_dsp) );
+
+   assign tx_i = tx_i_int[15:2];
+   assign tx_q = tx_q_int[15:2];
+   
+`else // !`ifdef DSP
+   // Dummy DSP signal generator for test purposes
+   wire [23:0] 	 tx_i_int, tx_q_int;
+   wire [23:0] 	 freq = {reg_test,8'd0};
+   reg [23:0] 	 phase;
+   
+   always @(posedge wb_clk)
+     phase <= phase + freq;
+   
+   cordic_z24 #(.bitwidth(24)) tx_cordic
+     (.clock(wb_clk), .reset(wb_rst), .enable(1),
+      .xi(24'd2500000), .yi(24'd0), .zi(phase), .xo(tx_i_int), .yo(tx_q_int), .zo());
+
+   assign tx_i = tx_i_int[23:10];
+   assign tx_q = tx_q_int[23:10];
+`endif // !`ifdef DSP
+      
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Wishbone Intercon, single master
+   wire [dw-1:0] s0_dat_mosi, s1_dat_mosi, s0_dat_miso, s1_dat_miso, s2_dat_mosi, s3_dat_mosi, s2_dat_miso, s3_dat_miso,
+		 s4_dat_mosi, s5_dat_mosi, s4_dat_miso, s5_dat_miso, s6_dat_mosi, s7_dat_mosi, s6_dat_miso, s7_dat_miso,
+		 s8_dat_mosi, s9_dat_mosi, s8_dat_miso, s9_dat_miso, sa_dat_mosi, sb_dat_mosi, sa_dat_miso, sb_dat_miso,
+		 sc_dat_mosi, sd_dat_mosi, sc_dat_miso, sd_dat_miso, se_dat_mosi, sf_dat_mosi, se_dat_miso, sf_dat_miso;
+   wire [aw-1:0] s0_adr,s1_adr,s2_adr,s3_adr,s4_adr,s5_adr,s6_adr,s7_adr;
+   wire [aw-1:0] s8_adr,s9_adr,sa_adr,sb_adr,sc_adr, sd_adr, se_adr, sf_adr;
+   wire [sw-1:0] s0_sel,s1_sel,s2_sel,s3_sel,s4_sel,s5_sel,s6_sel,s7_sel;
+   wire [sw-1:0] s8_sel,s9_sel,sa_sel,sb_sel,sc_sel, sd_sel, se_sel, sf_sel;
+   wire 	 s0_ack,s1_ack,s2_ack,s3_ack,s4_ack,s5_ack,s6_ack,s7_ack;
+   wire 	 s8_ack,s9_ack,sa_ack,sb_ack,sc_ack, sd_ack, se_ack, sf_ack;
+   wire 	 s0_stb,s1_stb,s2_stb,s3_stb,s4_stb,s5_stb,s6_stb,s7_stb;
+   wire 	 s8_stb,s9_stb,sa_stb,sb_stb,sc_stb, sd_stb, se_stb, sf_stb;
+   wire 	 s0_cyc,s1_cyc,s2_cyc,s3_cyc,s4_cyc,s5_cyc,s6_cyc,s7_cyc;
+   wire 	 s8_cyc,s9_cyc,sa_cyc,sb_cyc,sc_cyc, sd_cyc, se_cyc, sf_cyc;
+   wire 	 s0_we,s1_we,s2_we,s3_we,s4_we,s5_we,s6_we,s7_we;
+   wire 	 s8_we,s9_we,sa_we,sb_we,sc_we,sd_we, se_we, sf_we;
+   
+   wb_1master #(.dw(dw), .aw(aw), .sw(sw), .decode_w(4),
+		.s0_addr(4'h0), .s0_mask(4'hF), .s1_addr(4'h1), .s1_mask(4'hF),
+		.s2_addr(4'h2), .s2_mask(4'hF),	.s3_addr(4'h3), .s3_mask(4'hF),
+		.s4_addr(4'h4), .s4_mask(4'hF),	.s5_addr(4'h5), .s5_mask(4'hF),
+		.s6_addr(4'h6), .s6_mask(4'hF),	.s7_addr(4'h7), .s7_mask(4'hF),
+		.s8_addr(4'h8), .s8_mask(4'hF),	.s9_addr(4'h9), .s9_mask(4'hF),
+		.sa_addr(4'ha), .sa_mask(4'hF),	.sb_addr(4'hb), .sb_mask(4'hF),
+		.sc_addr(4'hc), .sc_mask(4'hF),	.sd_addr(4'hd), .sd_mask(4'hF),
+		.se_addr(4'he), .se_mask(4'hF),	.sf_addr(4'hf), .sf_mask(4'hF))
+   wb_1master
+     (.clk_i(wb_clk),.rst_i(wb_rst),       
+      .m0_dat_o(m0_dat_miso),.m0_ack_o(m0_ack),.m0_err_o(m0_err),.m0_rty_o(m0_rty),.m0_dat_i(m0_dat_mosi),
+      .m0_adr_i(m0_adr),.m0_sel_i(m0_sel),.m0_we_i(m0_we),.m0_cyc_i(m0_cyc),.m0_stb_i(m0_stb),
+      .s0_dat_o(s0_dat_mosi),.s0_adr_o(s0_adr),.s0_sel_o(s0_sel),.s0_we_o(s0_we),.s0_cyc_o(s0_cyc),.s0_stb_o(s0_stb),
+      .s0_dat_i(s0_dat_miso),.s0_ack_i(s0_ack),.s0_err_i(0),.s0_rty_i(0),
+      .s1_dat_o(s1_dat_mosi),.s1_adr_o(s1_adr),.s1_sel_o(s1_sel),.s1_we_o(s1_we),.s1_cyc_o(s1_cyc),.s1_stb_o(s1_stb),
+      .s1_dat_i(s1_dat_miso),.s1_ack_i(s1_ack),.s1_err_i(0),.s1_rty_i(0),
+      .s2_dat_o(s2_dat_mosi),.s2_adr_o(s2_adr),.s2_sel_o(s2_sel),.s2_we_o(s2_we),.s2_cyc_o(s2_cyc),.s2_stb_o(s2_stb),
+      .s2_dat_i(s2_dat_miso),.s2_ack_i(s2_ack),.s2_err_i(0),.s2_rty_i(0),
+      .s3_dat_o(s3_dat_mosi),.s3_adr_o(s3_adr),.s3_sel_o(s3_sel),.s3_we_o(s3_we),.s3_cyc_o(s3_cyc),.s3_stb_o(s3_stb),
+      .s3_dat_i(s3_dat_miso),.s3_ack_i(s3_ack),.s3_err_i(0),.s3_rty_i(0),
+      .s4_dat_o(s4_dat_mosi),.s4_adr_o(s4_adr),.s4_sel_o(s4_sel),.s4_we_o(s4_we),.s4_cyc_o(s4_cyc),.s4_stb_o(s4_stb),
+      .s4_dat_i(s4_dat_miso),.s4_ack_i(s4_ack),.s4_err_i(0),.s4_rty_i(0),
+      .s5_dat_o(s5_dat_mosi),.s5_adr_o(s5_adr),.s5_sel_o(s5_sel),.s5_we_o(s5_we),.s5_cyc_o(s5_cyc),.s5_stb_o(s5_stb),
+      .s5_dat_i(s5_dat_miso),.s5_ack_i(s5_ack),.s5_err_i(0),.s5_rty_i(0),
+      .s6_dat_o(s6_dat_mosi),.s6_adr_o(s6_adr),.s6_sel_o(s6_sel),.s6_we_o(s6_we),.s6_cyc_o(s6_cyc),.s6_stb_o(s6_stb),
+      .s6_dat_i(s6_dat_miso),.s6_ack_i(s6_ack),.s6_err_i(0),.s6_rty_i(0),
+      .s7_dat_o(s7_dat_mosi),.s7_adr_o(s7_adr),.s7_sel_o(s7_sel),.s7_we_o(s7_we),.s7_cyc_o(s7_cyc),.s7_stb_o(s7_stb),
+      .s7_dat_i(s7_dat_miso),.s7_ack_i(s7_ack),.s7_err_i(0),.s7_rty_i(0),
+      .s8_dat_o(s8_dat_mosi),.s8_adr_o(s8_adr),.s8_sel_o(s8_sel),.s8_we_o(s8_we),.s8_cyc_o(s8_cyc),.s8_stb_o(s8_stb),
+      .s8_dat_i(s8_dat_miso),.s8_ack_i(s8_ack),.s8_err_i(0),.s8_rty_i(0),
+      .s9_dat_o(s9_dat_mosi),.s9_adr_o(s9_adr),.s9_sel_o(s9_sel),.s9_we_o(s9_we),.s9_cyc_o(s9_cyc),.s9_stb_o(s9_stb),
+      .s9_dat_i(s9_dat_miso),.s9_ack_i(s9_ack),.s9_err_i(0),.s9_rty_i(0),
+      .sa_dat_o(sa_dat_mosi),.sa_adr_o(sa_adr),.sa_sel_o(sa_sel),.sa_we_o(sa_we),.sa_cyc_o(sa_cyc),.sa_stb_o(sa_stb),
+      .sa_dat_i(sa_dat_miso),.sa_ack_i(sa_ack),.sa_err_i(0),.sa_rty_i(0),
+      .sb_dat_o(sb_dat_mosi),.sb_adr_o(sb_adr),.sb_sel_o(sb_sel),.sb_we_o(sb_we),.sb_cyc_o(sb_cyc),.sb_stb_o(sb_stb),
+      .sb_dat_i(sb_dat_miso),.sb_ack_i(sb_ack),.sb_err_i(0),.sb_rty_i(0),
+      .sc_dat_o(sc_dat_mosi),.sc_adr_o(sc_adr),.sc_sel_o(sc_sel),.sc_we_o(sc_we),.sc_cyc_o(sc_cyc),.sc_stb_o(sc_stb),
+      .sc_dat_i(sc_dat_miso),.sc_ack_i(sc_ack),.sc_err_i(0),.sc_rty_i(0),
+      .sd_dat_o(sd_dat_mosi),.sd_adr_o(sd_adr),.sd_sel_o(sd_sel),.sd_we_o(sd_we),.sd_cyc_o(sd_cyc),.sd_stb_o(sd_stb),
+      .sd_dat_i(sd_dat_miso),.sd_ack_i(sd_ack),.sd_err_i(0),.sd_rty_i(0),
+      .se_dat_o(se_dat_mosi),.se_adr_o(se_adr),.se_sel_o(se_sel),.se_we_o(se_we),.se_cyc_o(se_cyc),.se_stb_o(se_stb),
+      .se_dat_i(se_dat_miso),.se_ack_i(se_ack),.se_err_i(0),.se_rty_i(0),
+      .sf_dat_o(sf_dat_mosi),.sf_adr_o(sf_adr),.sf_sel_o(sf_sel),.sf_we_o(sf_we),.sf_cyc_o(sf_cyc),.sf_stb_o(sf_stb),
+      .sf_dat_i(sf_dat_miso),.sf_ack_i(sf_ack),.sf_err_i(0),.sf_rty_i(0) );
+
+   assign s7_ack = 0;
+   assign s8_ack = 0;   assign s9_ack = 0;   assign sa_ack = 0;   assign sb_ack = 0;
+   assign sc_ack = 0;   assign sd_ack = 0;   assign se_ack = 0;   assign sf_ack = 0;
+
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Slave 0, Misc LEDs, Switches, controls
+   
+   localparam REG_LEDS = 7'd0;         // out
+   localparam REG_SWITCHES = 7'd2;     // in
+   localparam REG_CGEN_CTRL = 7'd4;    // out
+   localparam REG_CGEN_ST = 7'd6;      // in
+   localparam REG_TEST = 7'd8;         // out
+   localparam REG_RX_FRAMELEN = 7'd10; // out
+   localparam REG_TX_FRAMELEN = 7'd12; // in
+   localparam REG_XFER_RATE = 7'd14;   // in
+   
+   always @(posedge wb_clk)
+     if(wb_rst)
+       begin
+	  reg_leds <= 0;
+	  reg_cgen_ctrl <= 2'b11;
+	  reg_test <= 0;
+	  tx_frame_len <= 0;
+	  xfer_rate <= 0;
+       end
+     else
+       if(s0_cyc & s0_stb & s0_we) 
+	 case(s0_adr[6:0])
+	   REG_LEDS :
+	     reg_leds <= s0_dat_mosi;
+	   REG_CGEN_CTRL :
+	     reg_cgen_ctrl <= s0_dat_mosi;
+	   REG_TEST :
+	     reg_test <= s0_dat_mosi;
+	   REG_TX_FRAMELEN :
+	     tx_frame_len <= s0_dat_mosi;
+	   REG_XFER_RATE :
+	     xfer_rate <= s0_dat_mosi;
+	 endcase // case (s0_adr[6:0])
+
+   assign tx_enable = xfer_rate[15];
+   assign rx_enable = xfer_rate[14];
+   assign rate = xfer_rate[7:0];
+   
+   assign { debug_led[2],debug_led[0],debug_led[1] } = reg_leds;  // LEDs are arranged funny on board
+   assign { cgen_sync_b, cgen_ref_sel } = reg_cgen_ctrl;
+   //assign { rx_overrun, tx_underrun } = 0; // reg_test;
+   
+   assign s0_dat_miso = (s0_adr[6:0] == REG_LEDS) ? reg_leds : 
+			//(s0_adr[6:0] == REG_SWITCHES) ? {5'b0,debug_pb[2:0],dip_sw[7:0]} :
+			(s0_adr[6:0] == REG_CGEN_CTRL) ? reg_cgen_ctrl :
+			(s0_adr[6:0] == REG_CGEN_ST) ? {13'b0,cgen_st_status,cgen_st_ld,cgen_st_refmon} :
+			(s0_adr[6:0] == REG_TEST) ? reg_test :
+			(s0_adr[6:0] == REG_RX_FRAMELEN) ? rx_frame_len :
+			16'hBEEF;
+   
+   assign s0_ack = s0_stb & s0_cyc;
+
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Slave 1, UART
+   //    depth of 3 is 128 entries, clkdiv of 278 gives 230.4k with a 64 MHz system clock
+   
+   simple_uart #(.TXDEPTH(3),.RXDEPTH(3), .CLKDIV_DEFAULT(278)) uart 
+     (.clk_i(wb_clk),.rst_i(wb_rst),
+      .we_i(s1_we),.stb_i(s1_stb),.cyc_i(s1_cyc),.ack_o(s1_ack),
+      .adr_i(s1_adr[3:1]),.dat_i({16'd0,s1_dat_mosi}),.dat_o(s1_dat_miso),
+      .rx_int_o(),.tx_int_o(),
+      .tx_o(debug_txd),.rx_i(debug_rxd),.baud_o());
+
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Slave 2, SPI
+
+   spi_top16 shared_spi
+     (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.wb_adr_i(s2_adr[4:0]),.wb_dat_i(s2_dat_mosi),
+      .wb_dat_o(s2_dat_miso),.wb_sel_i(s2_sel),.wb_we_i(s2_we),.wb_stb_i(s2_stb),
+      .wb_cyc_i(s2_cyc),.wb_ack_o(s2_ack),.wb_err_o(),.wb_int_o(),
+      .ss_pad_o(sen), .sclk_pad_o(sclk), .mosi_pad_o(mosi), .miso_pad_i(miso) );
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // Slave 3, I2C
+
+   wire 	scl_pad_i, scl_pad_o, scl_pad_oen_o, sda_pad_i, sda_pad_o, sda_pad_oen_o;
+   i2c_master_top #(.ARST_LVL(1)) i2c 
+     (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.arst_i(1'b0), 
+      .wb_adr_i(s3_adr[4:2]),.wb_dat_i(s3_dat_mosi[7:0]),.wb_dat_o(s3_dat_miso[7:0]),
+      .wb_we_i(s3_we),.wb_stb_i(s3_stb),.wb_cyc_i(s3_cyc),
+      .wb_ack_o(s3_ack),.wb_inta_o(),
+      .scl_pad_i(scl_pad_i),.scl_pad_o(scl_pad_o),.scl_padoen_o(scl_pad_oen_o),
+      .sda_pad_i(sda_pad_i),.sda_pad_o(sda_pad_o),.sda_padoen_o(sda_pad_oen_o) );
+
+   assign 	 s3_dat_miso[15:8] = 8'd0;
+
+   // I2C -- Don't use external transistors for open drain, the FPGA implements this
+   IOBUF scl_pin(.O(scl_pad_i), .IO(db_scl), .I(scl_pad_o), .T(scl_pad_oen_o));
+   IOBUF sda_pin(.O(sda_pad_i), .IO(db_sda), .I(sda_pad_o), .T(sda_pad_oen_o));
+
+   // /////////////////////////////////////////////////////////////////////////
+   // GPIOs -- Slave #4
+
+   wire [31:0] 	atr_lines;
+   wire [31:0] 	debug_gpio_0, debug_gpio_1;
+   
+   nsgpio16LE 
+     nsgpio16LE(.clk_i(wb_clk),.rst_i(wb_rst),
+		.cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[3:0]),.we_i(s4_we),
+		.dat_i(s4_dat_mosi),.dat_o(s4_dat_miso),.ack_o(s4_ack),
+		.atr(atr_lines),.debug_0(debug_gpio_0),.debug_1(debug_gpio_1),
+		.gpio( {io_tx,io_rx} ) );
+
+   // /////////////////////////////////////////////////////////////////////////
+   // Settings Bus -- Slave #5
+
+   // only have 32 regs, 32 bits each with current setup...
+   settings_bus_16LE #(.AWIDTH(11),.RWIDTH(11-4-2)) settings_bus_16LE
+     (.wb_clk(wb_clk),.wb_rst(wb_rst),.wb_adr_i(s5_adr),.wb_dat_i(s5_dat_mosi),
+      .wb_stb_i(s5_stb),.wb_we_i(s5_we),.wb_ack_o(s5_ack),
+      .strobe(set_stb),.addr(set_addr),.data(set_data) );
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // ATR Controller -- Slave #6
+
+   atr_controller16 atr_controller16
+     (.clk_i(wb_clk), .rst_i(wb_rst),
+      .adr_i(s6_adr), .sel_i(s6_sel), .dat_i(s6_dat_mosi), .dat_o(s6_dat_miso),
+      .we_i(s6_we), .stb_i(s6_stb), .cyc_i(s6_cyc), .ack_o(s6_ack),
+      .run_rx(0), .run_tx(0), .ctrl_lines(atr_lines));
+
+
+   // /////////////////////////////////////////////////////////////////////////
+   // VITA Timing
+
+   time_64bit #(.TICKS_PER_SEC(32'd64000000),.BASE(SR_TIME64)) time_64bit
+     (.clk(wb_clk), .rst(wb_rst), .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
+      .pps(pps_in), .vita_time(vita_time), .pps_int(pps_int));
+   
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Debug circuitry
+
+   assign debug_clk = { 1'b0, clk_fpga };
+   assign debug = 0;
+   assign debug_gpio_0 = 0;
+   assign debug_gpio_1 = 0;
+   
+endmodule // u1plus_core