diff options
| -rw-r--r-- | usrp2/top/u1e/.gitignore | 4 | ||||
| -rw-r--r-- | usrp2/top/u1e/Makefile | 246 | ||||
| -rw-r--r-- | usrp2/top/u1e/u1e.ucf | 262 | ||||
| -rw-r--r-- | usrp2/top/u1e/u1e.v | 41 |
4 files changed, 553 insertions, 0 deletions
diff --git a/usrp2/top/u1e/.gitignore b/usrp2/top/u1e/.gitignore new file mode 100644 index 000000000..f8b57ea21 --- /dev/null +++ b/usrp2/top/u1e/.gitignore @@ -0,0 +1,4 @@ +*~ +build +*.log +*.cmd diff --git a/usrp2/top/u1e/Makefile b/usrp2/top/u1e/Makefile new file mode 100644 index 000000000..e9c101226 --- /dev/null +++ b/usrp2/top/u1e/Makefile @@ -0,0 +1,246 @@ +# +# Copyright 2008 Ettus Research LLC +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +################################################## +# xtclsh Shell and tcl Script Path +################################################## +#XTCLSH := /opt/Xilinx/10.1/ISE/bin/lin/xtclsh +XTCLSH := xtclsh +ISE_HELPER := ../tcl/ise_helper.tcl + +################################################## +# Project Setup +################################################## +BUILD_DIR := build/ +export TOP_MODULE := u1e +export PROJ_FILE := $(BUILD_DIR)$(TOP_MODULE).ise + +################################################## +# Project Properties +################################################## +export PROJECT_PROPERTIES := \ +family "Spartan-3A DSP" \ +device xc3sd1800a \ +package cs484 \ +speed -4 \ +top_level_module_type "HDL" \ +synthesis_tool "XST (VHDL/Verilog)" \ +simulator "ISE Simulator (VHDL/Verilog)" \ +"Preferred Language" "Verilog" \ +"Enable Message Filtering" FALSE \ +"Display Incremental Messages" FALSE + +################################################## +# Sources +################################################## +export SOURCE_ROOT := ../../../ +export SOURCES := \ +control_lib/CRC16_D16.v \ +control_lib/atr_controller.v \ +control_lib/bin2gray.v \ +control_lib/dcache.v \ +control_lib/decoder_3_8.v \ +control_lib/dpram32.v \ +control_lib/gray2bin.v \ +control_lib/gray_send.v \ +control_lib/icache.v \ +control_lib/mux4.v \ +control_lib/mux8.v \ +control_lib/nsgpio.v \ +control_lib/ram_2port.v \ +control_lib/ram_harv_cache.v \ +control_lib/ram_loader.v \ +control_lib/setting_reg.v \ +control_lib/settings_bus.v \ +control_lib/srl.v \ +control_lib/system_control.v \ +control_lib/wb_1master.v \ +control_lib/wb_readback_mux.v \ +control_lib/simple_uart.v \ +control_lib/simple_uart_tx.v \ +control_lib/simple_uart_rx.v \ +control_lib/oneshot_2clk.v \ +control_lib/sd_spi.v \ +control_lib/sd_spi_wb.v \ +control_lib/wb_bridge_16_32.v \ +control_lib/reset_sync.v \ +simple_gemac/simple_gemac_wrapper.v \ +simple_gemac/simple_gemac.v \ +simple_gemac/simple_gemac_wb.v \ +simple_gemac/simple_gemac_tx.v \ +simple_gemac/simple_gemac_rx.v \ +simple_gemac/crc.v \ +simple_gemac/delay_line.v \ +simple_gemac/flow_ctrl_tx.v \ +simple_gemac/flow_ctrl_rx.v \ +simple_gemac/address_filter.v \ +simple_gemac/ll8_to_txmac.v \ +simple_gemac/rxmac_to_ll8.v \ +simple_gemac/miim/eth_miim.v \ +simple_gemac/miim/eth_clockgen.v \ +simple_gemac/miim/eth_outputcontrol.v \ +simple_gemac/miim/eth_shiftreg.v \ +control_lib/newfifo/buffer_int.v \ +control_lib/newfifo/buffer_pool.v \ +control_lib/newfifo/fifo_2clock.v \ +control_lib/newfifo/fifo_2clock_cascade.v \ +control_lib/newfifo/ll8_shortfifo.v \ +control_lib/newfifo/ll8_to_fifo36.v \ +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/longfifo.v \ +control_lib/shortfifo.v \ +control_lib/medfifo.v \ +coregen/fifo_xlnx_2Kx36_2clk.v \ +coregen/fifo_xlnx_2Kx36_2clk.xco \ +coregen/fifo_xlnx_512x36_2clk.v \ +coregen/fifo_xlnx_512x36_2clk.xco \ +coregen/fifo_xlnx_64x36_2clk.v \ +coregen/fifo_xlnx_64x36_2clk.xco \ +extram/wb_zbt16_b.v \ +opencores/8b10b/decode_8b10b.v \ +opencores/8b10b/encode_8b10b.v \ +opencores/aemb/rtl/verilog/aeMB_bpcu.v \ +opencores/aemb/rtl/verilog/aeMB_core_BE.v \ +opencores/aemb/rtl/verilog/aeMB_ctrl.v \ +opencores/aemb/rtl/verilog/aeMB_edk32.v \ +opencores/aemb/rtl/verilog/aeMB_ibuf.v \ +opencores/aemb/rtl/verilog/aeMB_regf.v \ +opencores/aemb/rtl/verilog/aeMB_xecu.v \ +opencores/i2c/rtl/verilog/i2c_master_bit_ctrl.v \ +opencores/i2c/rtl/verilog/i2c_master_byte_ctrl.v \ +opencores/i2c/rtl/verilog/i2c_master_defines.v \ +opencores/i2c/rtl/verilog/i2c_master_top.v \ +opencores/i2c/rtl/verilog/timescale.v \ +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 \ +sdr_lib/acc.v \ +sdr_lib/add2.v \ +sdr_lib/add2_and_round.v \ +sdr_lib/add2_and_round_reg.v \ +sdr_lib/add2_reg.v \ +sdr_lib/cic_dec_shifter.v \ +sdr_lib/cic_decim.v \ +sdr_lib/cic_int_shifter.v \ +sdr_lib/cic_interp.v \ +sdr_lib/cic_strober.v \ +sdr_lib/clip.v \ +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_tx.v \ +sdr_lib/hb_dec.v \ +sdr_lib/hb_interp.v \ +sdr_lib/round.v \ +sdr_lib/round_reg.v \ +sdr_lib/rx_control.v \ +sdr_lib/rx_dcoffset.v \ +sdr_lib/sign_extend.v \ +sdr_lib/small_hb_dec.v \ +sdr_lib/small_hb_int.v \ +sdr_lib/tx_control.v \ +serdes/serdes.v \ +serdes/serdes_fc_rx.v \ +serdes/serdes_fc_tx.v \ +serdes/serdes_rx.v \ +serdes/serdes_tx.v \ +timing/time_receiver.v \ +timing/time_sender.v \ +timing/time_sync.v \ +timing/timer.v \ +top/u2_core/u2_core.v \ +top/u1e/u1e.ucf \ +top/u1e/u1e.v + +################################################## +# Process Properties +################################################## +export SYNTHESIZE_PROPERTIES := \ +"Number of Clock Buffers" 6 \ +"Pack I/O Registers into IOBs" Yes \ +"Optimization Effort" High \ +"Optimize Instantiated Primitives" TRUE \ +"Register Balancing" Yes \ +"Use Clock Enable" Auto \ +"Use Synchronous Reset" Auto \ +"Use Synchronous Set" Auto + +export TRANSLATE_PROPERTIES := \ +"Macro Search Path" "$(shell pwd)/../../coregen/" + +export MAP_PROPERTIES := \ +"Allow Logic Optimization Across Hierarchy" TRUE \ +"Map to Input Functions" 4 \ +"Optimization Strategy (Cover Mode)" Speed \ +"Pack I/O Registers/Latches into IOBs" "For Inputs and Outputs" \ +"Perform Timing-Driven Packing and Placement" TRUE \ +"Map Effort Level" High \ +"Extra Effort" Normal \ +"Combinatorial Logic Optimization" TRUE \ +"Register Duplication" TRUE + +export PLACE_ROUTE_PROPERTIES := \ +"Place & Route Effort Level (Overall)" High + +export STATIC_TIMING_PROPERTIES := \ +"Number of Paths in Error/Verbose Report" 10 \ +"Report Type" "Error Report" + +export GEN_PROG_FILE_PROPERTIES := \ +"Configuration Rate" 6 \ +"Create Binary Configuration File" TRUE \ +"Done (Output Events)" 5 \ +"Enable Bitstream Compression" TRUE \ +"Enable Outputs (Output Events)" 6 \ +"Unused IOB Pins" "Pull Up" + +export SIM_MODEL_PROPERTIES := "" + +################################################## +# Make Options +################################################## +all: + @echo make proj, check, synth, bin, or clean + +proj: + PROCESS_RUN="" $(XTCLSH) $(ISE_HELPER) + +check: + PROCESS_RUN="Check Syntax" $(XTCLSH) $(ISE_HELPER) + +synth: + PROCESS_RUN="Synthesize - XST" $(XTCLSH) $(ISE_HELPER) + +bin: + PROCESS_RUN="Generate Programming File" $(XTCLSH) $(ISE_HELPER) + +clean: + rm -rf $(BUILD_DIR) + + diff --git a/usrp2/top/u1e/u1e.ucf b/usrp2/top/u1e/u1e.ucf new file mode 100644 index 000000000..cb6d6372e --- /dev/null +++ b/usrp2/top/u1e/u1e.ucf @@ -0,0 +1,262 @@ + +NET "CLK_FPGA_P" LOC = "Y11" ; +NET "CLK_FPGA_N" LOC = "Y10" ; + +## GPMC +NET "EM_CLK" LOC = "F11" ; + +NET "EM_D<15>" LOC = "D13" ; +NET "EM_D<14>" LOC = "D15" ; +NET "EM_D<13>" LOC = "C16" ; +NET "EM_D<12>" LOC = "B20" ; +NET "EM_D<11>" LOC = "A19" ; +NET "EM_D<10>" LOC = "A17" ; +NET "EM_D<9>" LOC = "E15" ; +NET "EM_D<8>" LOC = "F15" ; +NET "EM_D<7>" LOC = "E16" ; +NET "EM_D<6>" LOC = "F16" ; +NET "EM_D<5>" LOC = "B17" ; +NET "EM_D<4>" LOC = "C17" ; +NET "EM_D<3>" LOC = "B19" ; +NET "EM_D<2>" LOC = "D19" ; +NET "EM_D<1>" LOC = "C19" ; +NET "EM_D<0>" LOC = "A20" ; + +NET "EM_A<10>" LOC = "C14" ; +NET "EM_A<9>" LOC = "C10" ; +NET "EM_A<8>" LOC = "C5" ; +NET "EM_A<7>" LOC = "A18" ; +NET "EM_A<6>" LOC = "A15" ; +NET "EM_A<5>" LOC = "A12" ; +NET "EM_A<4>" LOC = "A10" ; +NET "EM_A<3>" LOC = "E7" ; +NET "EM_A<2>" LOC = "A7" ; +NET "EM_A<1>" LOC = "C15" ; + +#NET "EM_NCS6" LOC = "E17" ; +#NET "EM_NCS5" LOC = "E10" ; +NET "EM_NCS4" LOC = "E6" ; +#NET "EM_NCS1" LOC = "D18" ; +#NET "EM_NCS0" LOC = "D17" ; + +NET "EM_WAIT0" LOC = "F14" ; +#NET "EM_NBE1" LOC = "D14" ; +#NET "EM_NBE0" LOC = "A13" ; +NET "EM_NWP" LOC = "F13" ; +NET "EM_NWE" LOC = "B13" ; +NET "EM_NOE" LOC = "A14" ; +NET "EM_NADV_ALE" LOC = "B15" ; + + +## Overo GPIO +#NET "overo_gpio0" LOC = "F9" ; +#NET "overo_gpio14" LOC = "C4" ; +#NET "overo_gpio21" LOC = "D5" ; +#NET "overo_gpio22" LOC = "A3" ; +#NET "overo_gpio23" LOC = "B3" ; +#NET "overo_gpio64" LOC = "A4" ; +#NET "overo_gpio65" LOC = "F8" ; +#NET "overo_gpio127" LOC = "C8" ; +#NET "overo_gpio128" LOC = "G8" ; +#NET "overo_gpio144" LOC = "A5" ; +#NET "overo_gpio145" LOC = "C7" ; +#NET "overo_gpio146" LOC = "A6" ; +#NET "overo_gpio147" LOC = "B6" ; +#NET "overo_gpio163" LOC = "D7" ; +#NET "overo_gpio170" LOC = "E8" ; +#NET "overo_gpio176" LOC = "B4" ; + +## Overo UART +#NET "overo_txd1" LOC = "C6" ; +#NET "overo_rxd1" LOC = "D6" ; + +#NET "FPGA_TXD" LOC = "U1" ; +#NET "FPGA_RXD" LOC = "T6" ; + +#NET "SYSEN" LOC = "C11" ; + +#NET "db_scl" LOC = "U4" ; +#NET "db_sda" LOC = "U5" ; +#NET "db_sclk_rx" LOC = "W3" ; +#NET "db_miso_rx" LOC = "W2" ; +#NET "db_mosi_rx" LOC = "V4" ; +#NET "db_sen_rx" LOC = "V3" ; +#NET "db_sclk_tx" LOC = "Y1" ; +#NET "db_miso_tx" LOC = "W1" ; +#NET "db_mosi_tx" LOC = "R3" ; +#NET "db_sen_tx" LOC = "T4" ; + +## Clock Gen +#NET "cgen_miso" LOC = "U2" ; +#NET "cgen_mosi" LOC = "V1" ; +#NET "cgen_sclk" LOC = "R5" ; +#NET "cgen_sen_b" LOC = "T1" ; +#NET "cgen_st_status" LOC = "D4" ; +#NET "cgen_st_ld" LOC = "D1" ; +#NET "cgen_st_refmon" LOC = "E1" ; +#NET "cgen_sync_b" LOC = "M1" ; +#NET "cgen_ref_sel" LOC = "J1" ; + +## Debug pins +NET "debug_led<2>" LOC = "T5" ; +NET "debug_led<1>" LOC = "R2" ; +NET "debug_led<0>" LOC = "R1" ; +NET "debug<0>" LOC = "P6" ; +NET "debug<1>" LOC = "R6" ; +NET "debug<2>" LOC = "P1" ; +NET "debug<3>" LOC = "P2" ; +NET "debug<4>" LOC = "N6" ; +NET "debug<5>" LOC = "N5" ; +NET "debug<6>" LOC = "N1" ; +NET "debug<7>" LOC = "K2" ; +NET "debug<8>" LOC = "K3" ; +NET "debug<9>" LOC = "K6" ; +NET "debug<10>" LOC = "L5" ; +NET "debug<11>" LOC = "H2" ; +NET "debug<12>" LOC = "K4" ; +NET "debug<13>" LOC = "K5" ; +NET "debug<14>" LOC = "G1" ; +NET "debug<15>" LOC = "H1" ; +NET "debug<16>" LOC = "H5" ; +NET "debug<17>" LOC = "H6" ; +NET "debug<18>" LOC = "E3" ; +NET "debug<19>" LOC = "E4" ; +NET "debug<20>" LOC = "G5" ; +NET "debug<21>" LOC = "G6" ; +NET "debug<22>" LOC = "F2" ; +NET "debug<23>" LOC = "F1" ; +NET "debug<24>" LOC = "H3" ; +NET "debug<25>" LOC = "H4" ; +NET "debug<26>" LOC = "F4" ; +NET "debug<27>" LOC = "F5" ; +NET "debug<28>" LOC = "C2" ; +NET "debug<29>" LOC = "C1" ; +NET "debug<30>" LOC = "F3" ; +NET "debug<31>" LOC = "G3" ; +NET "debug_clk<0>" LOC = "L6" ; +NET "debug_clk<1>" LOC = "M5" ; + +#NET "debug_pb<2>" LOC = "Y2" ; +#NET "debug_pb<1>" LOC = "AA1" ; +#NET "debug_pb<0>" LOC = "N3" ; + +#NET "dip_sw<7>" LOC = "T3" ; +#NET "dip_sw<6>" LOC = "U3" ; +#NET "dip_sw<5>" LOC = "M3" ; +#NET "dip_sw<4>" LOC = "N4" ; +#NET "dip_sw<3>" LOC = "J3" ; +#NET "dip_sw<2>" LOC = "J4" ; +#NET "dip_sw<1>" LOC = "J6" ; +#NET "dip_sw<0>" LOC = "J7" ; + +## AD9862 Interface +#NET "aux_sdi_codec" LOC = "F19" ; +#NET "aux_sdo_codec" LOC = "F18" ; +#NET "aux_sclk_codec" LOC = "D21" ; +#NET "reset_codec" LOC = "D22" ; +#NET "sen_codec" LOC = "D20" ; +#NET "mosi_codec" LOC = "E19" ; +#NET "miso_codec" LOC = "F21" ; +#NET "sclk_codec" LOC = "E20" ; + +#NET "RXSYNC" LOC = "F22" ; + +#NET "DB<11>" LOC = "E22" ; +#NET "DB<10>" LOC = "J19" ; +#NET "DB<9>" LOC = "H20" ; +#NET "DB<8>" LOC = "G19" ; +#NET "DB<7>" LOC = "F20" ; +#NET "DB<6>" LOC = "K16" ; +#NET "DB<5>" LOC = "J17" ; +#NET "DB<4>" LOC = "H22" ; +#NET "DB<3>" LOC = "G22" ; +#NET "DB<2>" LOC = "H17" ; +#NET "DB<1>" LOC = "H18" ; +#NET "DB<0>" LOC = "K20" ; +#NET "DA<11>" LOC = "J20" ; +#NET "DA<10>" LOC = "K19" ; +#NET "DA<9>" LOC = "K18" ; +#NET "DA<8>" LOC = "L22" ; +#NET "DA<7>" LOC = "K22" ; +#NET "DA<6>" LOC = "N22" ; +#NET "DA<5>" LOC = "M22" ; +#NET "DA<4>" LOC = "N20" ; +#NET "DA<3>" LOC = "N19" ; +#NET "DA<2>" LOC = "R22" ; +#NET "DA<1>" LOC = "P22" ; +#NET "DA<0>" LOC = "N17" ; + +#NET "TX<13>" LOC = "P19" ; +#NET "TX<12>" LOC = "R18" ; +#NET "TX<11>" LOC = "U20" ; +#NET "TX<10>" LOC = "T20" ; +#NET "TX<9>" LOC = "R19" ; +#NET "TX<8>" LOC = "R20" ; +#NET "TX<7>" LOC = "W22" ; +#NET "TX<6>" LOC = "Y22" ; +#NET "TX<5>" LOC = "T18" ; +#NET "TX<4>" LOC = "T17" ; +#NET "TX<3>" LOC = "W19" ; +#NET "TX<2>" LOC = "V20" ; +#NET "TX<1>" LOC = "Y21" ; +#NET "TX<0>" LOC = "AA22" ; +#NET "TXSYNC" LOC = "U18" ; +#NET "TXBLANK" LOC = "U19" ; + +#NET "PPS_IN" LOC = "M17" ; + +#NET "io_tx<0>" LOC = "AB20" ; +#NET "io_tx<1>" LOC = "Y17" ; +#NET "io_tx<2>" LOC = "Y16" ; +#NET "io_tx<3>" LOC = "U16" ; +#NET "io_tx<4>" LOC = "V16" ; +#NET "io_tx<5>" LOC = "AB19" ; +#NET "io_tx<6>" LOC = "AA19" ; +#NET "io_tx<7>" LOC = "U14" ; +#NET "io_tx<8>" LOC = "U15" ; +#NET "io_tx<9>" LOC = "AB17" ; +#NET "io_tx<10>" LOC = "AB18" ; +#NET "io_tx<11>" LOC = "Y13" ; +#NET "io_tx<12>" LOC = "W14" ; +#NET "io_tx<13>" LOC = "U13" ; +#NET "io_tx<14>" LOC = "AA15" ; +#NET "io_tx<15>" LOC = "AB14" ; + +#NET "io_rx<0>" LOC = "Y8" ; +#NET "io_rx<1>" LOC = "Y9" ; +#NET "io_rx<2>" LOC = "V7" ; +#NET "io_rx<3>" LOC = "U8" ; +#NET "io_rx<4>" LOC = "V10" ; +#NET "io_rx<5>" LOC = "U9" ; +#NET "io_rx<6>" LOC = "AB7" ; +#NET "io_rx<7>" LOC = "AA8" ; +#NET "io_rx<8>" LOC = "W8" ; +#NET "io_rx<9>" LOC = "V8" ; +#NET "io_rx<10>" LOC = "AB5" ; +#NET "io_rx<11>" LOC = "AB6" ; +#NET "io_rx<12>" LOC = "AB4" ; +#NET "io_rx<13>" LOC = "AA4" ; +#NET "io_rx<14>" LOC = "W5" ; +#NET "io_rx<15>" LOC = "Y4" ; + +#NET "CLKOUT2_CODEC" LOC = "U12" ; +#NET "CLKOUT1_CODEC" LOC = "V12" ; + +## FPGA Config Pins +#NET "fpga_cfg_prog_b" LOC = "A2" ; +#NET "fpga_cfg_done" LOC = "AB21" ; +#NET "fpga_cfg_din" LOC = "W17" ; +#NET "fpga_cfg_cclk" LOC = "V17" ; +#NET "fpga_cfg_init_b" LOC = "W15" ; + +## Unnamed, need to figure out what they do +#NET "unnamed_net37" LOC = "B1" ; +#NET "unnamed_net36" LOC = "B22" ; +#NET "unnamed_net35" LOC = "D2" ; +#NET "unnamed_net34" LOC = "A21" ; +#NET "unnamed_net45" LOC = "F7" ; +#NET "unnamed_net44" LOC = "V6" ; +#NET "unnamed_net43" LOC = "AA3" ; +#NET "unnamed_net42" LOC = "AB3" ; + +#NET "GND" LOC = "V19" ; diff --git a/usrp2/top/u1e/u1e.v b/usrp2/top/u1e/u1e.v new file mode 100644 index 000000000..e28a6a582 --- /dev/null +++ b/usrp2/top/u1e/u1e.v @@ -0,0 +1,41 @@ +`timescale 1ns / 1ps +////////////////////////////////////////////////////////////////////////////////// + +module u1e + ( + input CLK_FPGA_P, input CLK_FPGA_N, // Diff + output [2:0] debug_led, output [31:0] debug, output [1:0] debug_clk, + + // GPMC + input EM_CLK, inout [15:0] EM_D, input [10:1] EM_A, + input EM_WAIT0, input EM_NCS4, input EM_NWP, input EM_NWE, input EM_NOE, input EM_NADV_ALE + ); + + // FPGA-specific pins connections + wire clk_fpga; + + IBUFGDS #(.IOSTANDARD("LVDS_33"), .DIFF_TERM("TRUE")) + clk_fpga_pin (.O(clk_fpga),.I(CLK_FPGA_P),.IB(CLK_FPGA_N)); + + // Debug circuitry + reg [31:0] ctr; + always @(posedge clk_fpga) + ctr <= ctr + 1; + + + assign debug_led = ctr[27:25]; + assign debug_clk = { EM_CLK, clk_fpga }; + assign debug = { { EM_WAIT0, EM_NADV_ALE, EM_NWP, EM_NCS4, EM_NWE, EM_NOE, EM_A[10:1] }, + { EM_D } }; + + wire EM_output_enable = (~EM_NOE & ~EM_NCS4); + wire [15:0] EM_D_out; + + assign EM_D = EM_output_enable ? EM_D_out : 16'bz; + + ram_2port #(.DWIDTH(16), .AWIDTH(10)) ram_2port + (.clka(clk_fpga), .ena(~EM_NCS4), .wea(~EM_NWE), .addra(EM_A), .dia(EM_D), .doa(EM_D_out), + .clkb(clk_fpga), .enb(0), .web(0), .addrb(0), .dib(0), .dob()); + + +endmodule // u2plus |