/********************************************************* MODULE:		Top Level System On A Chip Design FILE NAME:	soc.v DATE:		May 7th, 2002 AUTHOR:		Hossein Amidi COMPANY:	 CODE TYPE:	Register Transfer Level DESCRIPTION:	This module is the top level RTL code of System On a Chip Verilog code. It will instantiate the following blocks in the ASIC: 1)   Vertex STARTUP 2)	DLL 3)	RISC uProcessor 4)	DMA Cntrl 5)	LRU Data Cache 6)	LRU Instruction Cache 7)	Bus Arbiter 8)	UART 9)	Timer 10)  Flash Controller 11)	SDRAM Controller Hossein Amidi (C) May 2002*********************************************************/// DEFINES`timescale 1ns / 10ps // TOP MODULEmodule soc(	// Inputs						clk,						reset,						irq,						ser_rxd,						flash_datain,						mem_datain,						// Outputs						pll_lock,						addr,						cs,						ras,						cas,						we,						dqm,						cke,						ba,						pllclk,						halted,						ser_txd,						flash_cle,						flash_ale,						flash_ce,						flash_re,						flash_we,						flash_wp,						flash_rb,						flash_irq,						flash_dataout,						mem_dataout,						mem_addr,						mem_req,						mem_rdwr,						// Inouts						dq						);// Parameter`include        "parameter.v"// Inputsinput clk;input reset;input irq;input ser_rxd;input [flash_size - 1 : 0]flash_datain;input [data_size - 1 : 0]mem_datain;// Outputsoutput pll_lock;output [add_size - 1 : 0]addr;output [cs_size  - 1 : 0]cs;output ras;output cas;output we;output [dqm_size - 1 : 0]dqm;output cke;output [ba_size - 1 : 0]ba;output pllclk;output halted;output ser_txd;output flash_cle;output flash_ale;output flash_ce;output flash_re;output flash_we;output flash_wp;output flash_rb;output flash_irq;output [flash_size - 1 : 0]flash_dataout;output [data_size -1 : 0]mem_dataout;output [padd_size - 1 : 0]mem_addr;output mem_req;output mem_rdwr;// Inoutsinout [data_size - 1 : 0]dq;// Signal Declarationswire clk;wire reset;wire irq;wire [add_size - 1 : 0]addr;wire [cs_size - 1 : 0]cs;wire ras;wire cas;wire we;wire [dqm_size - 1 : 0]dqm;wire cke;wire [ba_size - 1 : 0]ba;wire pllclk;wire halted;wire [data_size - 1 : 0]dq;wire system_irq;// RISC Signal Declarationswire [irq_size - 1 : 0]interrupt;wire cmdack;wire [arbiter_bus_size - 1 : 0]bus_grant;wire [data_size - 1 : 0]dcache_host_datain;wire [data_size - 1 : 0]icache_host_datain;wire dcache_hit;wire dcache_miss;wire icache_hit;wire icache_miss;wire [data_size - 1 : 0]dma_host_datain;wire [padd_size - 1 : 0]host_addr;wire [cmd_size - 1 : 0]host_cmd;wire [dqm_size - 1 : 0]host_dm;wire [arbiter_bus_size - 1 : 0]bus_request;wire dcache_request;wire icache_request;wire [data_size - 1 : 0]dma_host_dataout; wire [data_size - 1 : 0]dcache_host_dataout;wire [data_size - 1 : 0]icache_host_dataout;// DMA Signal Declarationswire [fifo_size - 1 : 0]dma_rd_datain;wire [fifo_size - 1 : 0]dma_wr_datain;wire dma_irq;wire [padd_size - 1 : 0]dma_rd_addr;wire [padd_size - 1 : 0]dma_wr_addr;wire [cmd_size - 1 : 0]dma_rd_cmd;wire [fifo_size - 1 : 0]dma_wr_dataout; wire [fifo_size - 1 : 0]dma_rd_dataout; wire dma_busy;// LRU Data Cache Signal Declarationswire [data_size - 1 : 0]dcache_datain;wire [padd_size - 1 : 0]dcache_addr;wire [cmd_size - 1 : 0]dcache_cmd;wire [data_size - 1 : 0]dcache_dataout; wire [padd_size - 1 : 0]sdram_addr;wire [cmd_size - 1 : 0]sdram_cmd;// LRU Instruction Cache Signal Declarationswire [data_size - 1 : 0]icache_datain;wire [padd_size - 1 : 0]icache_addr;wire [cmd_size - 1 : 0]icache_cmd;wire [data_size - 1 : 0]icache_dataout; // Bus Arbiter Signal Declarationswire [data_size - 1 : 0]sdram_datain;wire [data_size - 1 : 0]sdram_dataout;// SDRAM Controller Signal Declarations// UART Signal Declarationswire uart_cs;wire uart_rd;wire uart_wr;wire ser_rxd;wire ser_txd;wire [data_size - 1 : 0]uart_host_datain;wire [data_size - 1 : 0]uart_host_dataout;// Timer Signal Declarationswire [data_size - 1 : 0]timer_host_datain;wire timer_irq;wire [data_size - 1 : 0]timer_host_dataout;// Flash Controller Signal Decelarationwire [data_size - 1 : 0]flash_host_dataout;wire [flash_size - 1 : 0]flash_datain;wire [data_size - 1 : 0]flash_host_datain;wire flash_cle;wire flash_ale;wire flash_ce;wire flash_re;wire flash_we;wire flash_wp;wire flash_rb;wire flash_irq;wire [flash_size - 1 : 0]flash_dataout;// Memorywire [data_size - 1 :0]mem_dataout;wire [data_size - 1 :0]mem_datain;wire mem_req;wire mem_rdwr;wire [padd_size - 1 : 0]mem_addr;assign mem_addr = host_addr;// Assignment statmentsassign system_irq = irq;assign interrupt = {timer_irq,dma_irq,system_irq};/*--------------------------- Module Instantiation ----------------------------*/STARTUP_VIRTEX u22 (.GSR(reset));/*--------------------------- DLL Instantiation Block ----------------------------*/wire CLKIN_w;wire clk0;wire CLK0_dll, CLK90_dll, CLK180_dll, CLK2X_dll, CLKDV2_dll;wire clk0_90, clk0_180, clk0_2x, clk0_dv2;wire pll_lock;IBUFG clkpad (.I(clk), .O(CLKIN_w));CLKDLL dll_0 (.CLKIN(CLKIN_w), .CLKFB(clk0), .RST(reset),             .CLK0(CLK0_dll), .CLK90(CLK90_dll), .CLK180(CLK180_dll), .CLK270(),            .CLK2X(CLK2X_dll), .CLKDV(CLKDV2_dll), .LOCKED(pll_lock));BUFG  u1 (.I(CLK0_dll),   .O(clk0));BUFG  u2 (.I(CLK180_dll),  .O(clk0_180));BUFG  u3 (.I(CLK2X_dll), .O(clk0_2x));//assign pllclk = clk0_180;assign pllclk = clk0;/****************************** Sub Level Block Instantiation ****************************/risc uProcessor0(	// Input						.reset(reset),						.clk0(clk0),						.pll_lock(pll_lock),						.interrupt(interrupt),						.cmdack(cmdack),						.dcache_datain(dcache_host_datain),						.dcache_hit(dcache_hit),						.dcache_miss(dcache_miss),						.icache_datain(icache_host_datain),						.icache_hit(icache_hit),						.icache_miss(icache_miss),						.dma_datain(dma_host_datain),						.dma_busy(dma_busy),						.timer_host_datain(timer_host_datain),						.flash_host_datain(flash_host_datain),						.uart_host_datain(uart_host_datain),						.mem_datain(mem_datain),						// Output						.paddr(host_addr),						.cmd(host_cmd),						.dm(host_dm),						.dcache_request(dcache_request),						.icache_request(icache_request),						.dma_dataout(dma_host_dataout),						.dcache_dataout(dcache_host_dataout),						.icache_dataout(icache_host_dataout),						.timer_host_dataout(timer_host_dataout),						.flash_host_dataout(flash_host_dataout),						.uart_host_dataout(uart_host_dataout),						.mem_dataout(mem_dataout),						.mem_req(mem_req),						.mem_rdwr(mem_rdwr),						.halted(halted)						);dma_cntrl dma_cntrl0(// Input							.reset(reset),							.clk0(clk0),							.dma_host_addr(host_addr),							.dma_host_cmd(host_cmd),							.dma_host_datain(dma_host_dataout),							.dma_bus_grant(bus_grant[2]),							.dma_rd_datain(dma_rd_datain),							.dma_wr_datain(dma_wr_datain),							// Output							.dma_host_dataout(dma_host_datain),							.dma_irq(dma_irq),							.dma_bus_req(bus_request[2]),							.dma_rd_addr(dma_rd_addr),							.dma_wr_addr(dma_wr_addr),							.dma_wr_dataout(dma_wr_dataout),							.dma_rd_cmd(dma_rd_cmd),							.dma_busy(dma_busy),							.uart_cs(uart_cs),							.uart_rd(uart_rd),							.uart_wr(uart_wr),							.dma_rd_dataout(dma_rd_dataout)							);lru_data_cache lru_data_cache0(// Input										.reset(reset),										.clk0(clk0),										.cache_host_addr(host_addr),										.cache_host_cmd(host_cmd),										.cache_request(dcache_request),										.cache_host_datain(dcache_host_dataout),										.cache_bus_grant(bus_grant[0]),										.cache_datain(dcache_datain),										// Output										.cache_host_dataout(dcache_host_datain),										.cache_hit(dcache_hit),										.cache_miss(dcache_miss),										.cache_bus_request(bus_request[0]),										.cache_addr(dcache_addr),										.cache_cmd(dcache_cmd),										.cache_dataout(dcache_dataout)										);lru_instruction_cache lru_inst_cache0(// Input													.reset(reset),													.clk0(clk0),													.cache_host_addr(host_addr),													.cache_host_cmd(host_cmd),													.cache_request(icache_request),													.cache_host_datain(icache_host_dataout),													.cache_bus_grant(bus_grant[1]),													.cache_datain(icache_datain),													// Output													.cache_host_dataout(icache_host_datain),													.cache_hit(icache_hit),													.cache_miss(icache_miss),													.cache_bus_request(bus_request[1]),													.cache_addr(icache_addr),													.cache_cmd(icache_cmd),													.cache_dataout(icache_dataout)													);bus_arbiter  bus_arbiter0(	// Input									.reset(reset),									.clk0(clk0),									.bus_request(bus_request),									.dma_dataout(dma_wr_dataout),									.dma_addr(dma_rd_addr),									.dma_cmd(dma_rd_cmd),									.dcache_dataout(dcache_dataout),									.dcache_addr(dcache_addr),									.dcache_cmd(dcache_cmd),									.icache_dataout(icache_dataout),									.icache_addr(icache_addr),									.icache_cmd(icache_cmd),									.sdram_dataout(sdram_dataout),									// Output									.bus_grant(bus_grant),									.dma_datain(dma_wr_datain),									.dcache_datain(dcache_datain),									.icache_datain(icache_datain),									.sdram_addr(sdram_addr),									.sdram_cmd(sdram_cmd),									.sdram_datain(sdram_datain)									);uart  uart0(// Input				.reset(reset),				.clk0(clk0),				.uart_addr(dma_wr_addr),				.uart_host_addr(host_addr),				.uart_host_cmd(host_cmd),				.uart_cmd(dma_rd_cmd),				.uart_host_datain(uart_host_dataout),				.uart_cs(uart_cs),				.uart_rd(uart_rd),				.uart_wr(uart_wr),				.ser_rxd(ser_rxd),				.uart_datain(dma_rd_dataout),				// Output				.ser_txd(ser_txd),				.uart_host_dataout(uart_host_datain),				.uart_dataout(dma_rd_datain)				);timer 	timer0(	// Input						.reset(reset),						.clk0(clk0),						.timer_host_datain(timer_host_dataout),						.timer_cmd(host_cmd),						.timer_addr(host_addr),						// Output						.timer_host_dataout(timer_host_datain),						.timer_irq(timer_irq)						);flash_ctrl flash_ctrl0(// Inputs								.reset(reset),								.clk0(clk0),								.flash_host_addr(host_addr),								.flash_host_cmd(host_cmd),								.flash_host_dataout(flash_host_dataout),								.flash_datain(flash_datain),								// Outputs								.flash_host_datain(flash_host_datain),								.flash_cle(flash_cle),								.flash_ale(flash_ale),								.flash_ce(flash_ce),								.flash_re(flash_re),								.flash_we(flash_we),								.flash_wp(flash_wp),								.flash_rb(flash_rb),								.flash_irq(flash_irq),								.flash_dataout(flash_dataout)								);sdram_ctrl sdram_ctrl0(// Inputs								.clk0(clk0),								.clk0_2x(clk0_2x),								.reset(reset),								.paddr(sdram_addr),								.cmd(sdram_cmd),								.dm(host_dm),								.datain(sdram_datain),								// Outputs								.cmdack(cmdack),								.addr(addr),								.cs(cs),								.ras(ras),								.cas(cas),								.we(we),								.dqm(dqm),								.cke(cke),								.ba(ba),								.dataout(sdram_dataout),								// Inouts								.dq(dq)								);endmodule