module de1_test(
  // Clock Input
  input [1:0] CLOCK_24,                 // 24 MHz
  input [1:0] CLOCK_27,                 // 27 MHz
  input       CLOCK_50,                 // 50 MHz
  input       EXT_CLOCK,                // External Clock
  // Push Button
  input [3:0] KEY,                      // Pushbutton[3:0]
  // DPDT Switch
  input [9:0] SW,                       // Toggle Switch[9:0]
  // 7-SEG Dispaly
  output [6:0] HEX0,                    // Seven Segment Digit 0
  output [6:0] HEX1,                    // Seven Segment Digit 1
  output [6:0] HEX2,                    // Seven Segment Digit 2
  output [6:0] HEX3,                    // Seven Segment Digit 3
  // LED
  output [7:0] LEDG,                    // LED Green[7:0]
  output [9:0] LEDR,                    // LED Red[9:0]
  // UART
  output UART_TXD,                      // UART Transmitter
  input  UART_RXD,                      // UART Receiver
  // SDRAM Interface
  inout  [15:0] DRAM_DQ,                // SDRAM Data bus 16 Bits
  output [11:0] DRAM_ADDR,              // SDRAM Address bus 12 Bits
  output   DRAM_LDQM,                   // SDRAM Low-byte Data Mask 
  output   DRAM_UDQM,                   // SDRAM High-byte Data Mask
  output   DRAM_WE_N,                   // SDRAM Write Enable
  output   DRAM_CAS_N,                  // SDRAM Column Address Strobe
  output   DRAM_RAS_N,                  // SDRAM Row Address Strobe
  output   DRAM_CS_N,                   // SDRAM Chip Select
  output   DRAM_BA_0,                   // SDRAM Bank Address 0
  output   DRAM_BA_1,                   // SDRAM Bank Address 0
  output   DRAM_CLK,                    // SDRAM Clock
  output   DRAM_CKE,                    // SDRAM Clock Enable
  // Flash Interface
  inout  [7:0]  FL_DQ,                  // FLASH Data bus 8 Bits
  output [21:0] FL_ADDR,                // FLASH Address bus 22 Bits
  output   FL_WE_N,                     // FLASH Write Enable
  output   FL_RST_N,                    // FLASH Reset
  output   FL_OE_N,                     // FLASH Output Enable
  output   FL_CE_N,                     // FLASH Chip Enable
  // SRAM Interface
  inout  [15:0] SRAM_DQ,                // SRAM Data bus 16 Bits
  output [17:0] SRAM_ADDR,              // SRAM Address bus 18 Bits
  output   SRAM_UB_N,                   // SRAM High-byte Data Mask 
  output   SRAM_LB_N,                   // SRAM Low-byte Data Mask 
  output   SRAM_WE_N,                   // SRAM Write Enable
  output   SRAM_CE_N,                   // SRAM Chip Enable
  output   SRAM_OE_N,                   // SRAM Output Enable
  // SD Card Interface
  inout   SD_DAT,                       // SD Card Data
  inout   SD_DAT3,                      // SD Card Data 3
  inout   SD_CMD,                       // SD Card Command Signal
  output  SD_CLK,                       // SD Card Clock
  // I2C
  inout   I2C_SDAT,                     // I2C Data
  output  I2C_SCLK,                     // I2C Clock
  // PS2
  input   PS2_DAT,                      // PS2 Data
  input   PS2_CLK,                      // PS2 Clock
  // USB JTAG link
  input     TDI,                        // CPLD -> FPGA (data in)
  input     TCK,                        // CPLD -> FPGA (clk)
  input     TCS,                        // CPLD -> FPGA (CS)
  output    TDO,                        // FPGA -> CPLD (data out)
  // VGA
  output   VGA_HS,                      // VGA H_SYNC
  output   VGA_VS,                      // VGA V_SYNC
  output [3:0] VGA_R,                   // VGA Red[3:0]
  output [3:0] VGA_G,                   // VGA Green[3:0]
  output [3:0] VGA_B,                   // VGA Blue[3:0]
  // Audio CODEC
  inout   AUD_ADCLRCK,                  // Audio CODEC ADC LR Clock
  input   AUD_ADCDAT,                   // Audio CODEC ADC Data
  inout   AUD_DACLRCK,                  // Audio CODEC DAC LR Clock
  output  AUD_DACDAT,                   // Audio CODEC DAC Data
  inout   AUD_BCLK,                     // Audio CODEC Bit-Stream Clock
  output  AUD_XCK,                      // Audio CODEC Chip Clock
  // GPIO
  inout [35:0] GPIO_0,                  // GPIO Connection 0
  inout [35:0] GPIO_1                   // GPIO Connection 1
);