library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_arith.all; use ieee.std_logic_unsigned.all; entity top_level is port ( sys_reset_n_ipad : in std_logic; clk_osc_mhz_14_ipad : in std_logic; clk_osc_khz_32_ipad : in std_logic; -- Embedded Artists LPC3141 OEM Module Interface clk_lpc3141_clock_out_ipad : in std_logic; clk_lpc3141_sysclk_ipad : in std_logic; clk_lpc3141_256fs_ipad : in std_logic; lpc3141_b_n_stcs1_ipad : in std_logic; lpc3141_b_n_stcs0_ipad : in std_logic; lpc3141_bbls1_ipad : in std_logic; lpc3141_bbls0_ipad : in std_logic; lpc3141_b_n_we_ipad : in std_logic; lpc3141_b_n_oe_ipad : in std_logic; lpc3141_ba_ipads : in std_logic_vector(15 downto 0); lpc3141_bd_iopads : inout std_logic_vector(15 downto 0); lpc3141_n_abuf_en_opad : out std_logic; lpc3141_n_dbuf_en_opad : out std_logic; -- PC-104 Standard Control Signals pc104_std_iochk_n_ipad : in std_logic; pc104_std_iochrdy_ipad : in std_logic; pc104_std_endxfer_ipad : in std_logic; pc104_std_osc_opad : out std_logic; pc104_std_bclk_opad : out std_logic; pc104_std_aen_opad : out std_logic; pc104_std_bale_opad : out std_logic; pc104_std_smemr_n_opad : out std_logic; pc104_std_smemw_n_opad : out std_logic; pc104_std_ior_n_opad : out std_logic; pc104_std_iow_n_opad : out std_logic; pc104_std_reset_out_opad : out std_logic; pc104_std_refresh_n_opad : out std_logic; pc104_std_tc_opad : out std_logic; -- PC 104 Standard Address and Data Busses pc104_std_sa_opads : out std_logic_vector(19 downto 0); pc104_std_sd_iopads : inout std_logic_vector(7 downto 0); -- PC-104 Standard Interrupt Requests pc104_std_irq9_ipad : in std_logic; pc104_std_irq7_ipad : in std_logic; pc104_std_irq6_ipad : in std_logic; pc104_std_irq5_ipad : in std_logic; pc104_std_irq4_ipad : in std_logic; pc104_std_irq3_ipad : in std_logic; -- PC-104 Standard DMA Requests(unused) pc104_std_drq3_ipad : in std_logic; pc104_std_drq2_ipad : in std_logic; pc104_std_drq1_ipad : in std_logic; -- PC-104 Standard DMA Acknowledgements(unused) pc104_std_dack3_opad : out std_logic; pc104_std_dack2_opad : out std_logic; pc104_std_dack1_opad : out std_logic; -- PC-104 Extended Control Signals(unused) pc104_ext_master_n_ipad : in std_logic; pc104_ext_sbhe_n_opad : out std_logic; pc104_ext_memcs16_n_opad : out std_logic; pc104_ext_iocs16_n_opad : out std_logic; pc104_ext_memr_n_opad : out std_logic; pc104_ext_memw_n_opad : out std_logic; -- PC 104 Extended Address and Data Busses(unused) pc104_ext_la_opads : out std_logic_vector(23 downto 17); pc104_ext_sd_iopads : inout std_logic_vector(15 downto 8); -- PC-104 Extended Interrupt Requests(unused) pc104_ext_irq15_ipad : in std_logic; pc104_ext_irq14_ipad : in std_logic; pc104_ext_irq12_ipad : in std_logic; pc104_ext_irq11_ipad : in std_logic; pc104_ext_irq10_ipad : in std_logic; -- PC-104 Extended DMA Requests (unnused) pc104_ext_drq7_ipad : in std_logic; pc104_ext_drq6_ipad : in std_logic; pc104_ext_drq5_ipad : in std_logic; pc104_ext_drq0_ipad : in std_logic; -- PC-104 Extended DMA Acknowledgements (unnused) pc104_ext_dack7_opad : out std_logic; pc104_ext_dack6_opad : out std_logic; pc104_ext_dack5_opad : out std_logic; pc104_ext_dack0_opad : out std_logic; -- LPC3141 OEM Module GPIO (unnused) lpc3141_gpio_20_opad : out std_logic; lpc3141_gpio_19_opad : out std_logic; lpc3141_gpio_18_opad : out std_logic; lpc3141_gpio_17_opad : out std_logic; lpc3141_gpio_16_opad : out std_logic; lpc3141_gpio_15_opad : out std_logic; lpc3141_gpio_14_opad : out std_logic; lpc3141_gpio_13_opad : out std_logic; lpc3141_gpio_12_opad : out std_logic; lpc3141_gpio_11_opad : out std_logic; lpc3141_gpio_4_opad : out std_logic; lpc3141_gpio_3_opad : out std_logic; -- Ethernet Interface enet_intr_n_ipad : in std_logic; enet_pme_ipad : in std_logic; enet_reset_n_opad : out std_logic; enet_cs_n_opad : out std_logic; enet_rd_n_opad : out std_logic; enet_wr_n_opad : out std_logic; enet_cmd_opad : out std_logic; enet_io_iopads : inout std_logic_vector(15 downto 0); -- USB hs_usb_fault_ipad : in std_logic; hs_usb_on_opad : out std_logic; -- Real Time Clock rtc_interrupt_n_ipad : in std_logic; -- Miscellanous I/O oscillator_enable : out std_logic; pwm_opad : out std_logic ); attribute loc : string; attribute io_type : string; attribute level_mode : string; attribute loc of clk_lpc3141_256fs_ipad : signal is "H14"; attribute loc of clk_lpc3141_clock_out_ipad : signal is "J1"; attribute loc of clk_lpc3141_sysclk_ipad : signal is "E1"; attribute loc of clk_osc_khz_32_ipad : signal is "T9"; attribute loc of clk_osc_mhz_14_ipad : signal is "T7"; attribute loc of enet_cmd_opad : signal is "B16"; attribute loc of enet_cs_n_opad : signal is "R5"; attribute loc of enet_intr_n_ipad : signal is "E15"; attribute loc of enet_io_iopads : signal is "J15,H16,T13,P12,M15,N14,G11,G12,K14,M16,K12,F14,E16,J16,J11,H12"; -- LSB to MSB order attribute loc of enet_pme_ipad : signal is "B14"; attribute loc of enet_rd_n_opad : signal is "T3"; attribute loc of enet_reset_n_opad : signal is "T2"; attribute loc of enet_wr_n_opad : signal is "R4"; attribute loc of hs_usb_fault_ipad : signal is "F7"; attribute loc of hs_usb_on_opad : signal is "F9"; attribute loc of lpc3141_b_n_oe_ipad : signal is "R16"; attribute loc of lpc3141_b_n_stcs0_ipad : signal is "P16"; attribute loc of lpc3141_b_n_stcs1_ipad : signal is "R11"; attribute loc of lpc3141_b_n_we_ipad : signal is "P15"; attribute loc of lpc3141_ba_ipads : signal is "C7,N2,P10,P8,L7,M10,P9,R13,N1,R7,K5,D8,P2,C2,B10,A13"; attribute loc of lpc3141_bbls0_ipad : signal is "C13"; attribute loc of lpc3141_bbls1_ipad : signal is "E14"; attribute loc of lpc3141_bd_iopads : signal is "K16,H15,P13,R12,L13,M14,H13,F12,L16,L15,K13,G13,D15,J14,L12,G15"; attribute loc of lpc3141_gpio_11_opad : signal is "E11"; attribute loc of lpc3141_gpio_12_opad : signal is "A10"; attribute loc of lpc3141_gpio_13_opad : signal is "C11"; attribute loc of lpc3141_gpio_14_opad : signal is "D9"; attribute loc of lpc3141_gpio_15_opad : signal is "M9"; attribute loc of lpc3141_gpio_16_opad : signal is "K1"; attribute loc of lpc3141_gpio_17_opad : signal is "E2"; attribute loc of lpc3141_gpio_18_opad : signal is "M11"; attribute loc of lpc3141_gpio_19_opad : signal is "K6"; attribute loc of lpc3141_gpio_20_opad : signal is "R8"; attribute loc of lpc3141_gpio_3_opad : signal is "K3"; attribute loc of lpc3141_gpio_4_opad : signal is "N9"; attribute loc of lpc3141_n_abuf_en_opad : signal is "F1"; attribute loc of lpc3141_n_dbuf_en_opad : signal is "G3"; attribute loc of pc104_ext_dack0_opad : signal is "B6"; attribute loc of pc104_ext_dack5_opad : signal is "C8"; attribute loc of pc104_ext_dack6_opad : signal is "C5"; attribute loc of pc104_ext_dack7_opad : signal is "P4"; attribute loc of pc104_ext_drq0_ipad : signal is "A5"; attribute loc of pc104_ext_drq5_ipad : signal is "A8"; attribute loc of pc104_ext_drq6_ipad : signal is "A4"; attribute loc of pc104_ext_drq7_ipad : signal is "T4"; attribute loc of pc104_ext_iocs16_n_opad : signal is "G2"; attribute loc of pc104_ext_irq10_ipad : signal is "H5"; attribute loc of pc104_ext_irq11_ipad : signal is "C1"; attribute loc of pc104_ext_irq12_ipad : signal is "N10"; attribute loc of pc104_ext_irq14_ipad : signal is "J5"; attribute loc of pc104_ext_irq15_ipad : signal is "L8"; attribute loc of pc104_ext_la_opads : signal is "N7,L2,F8,R1,B1,D10,B12"; attribute loc of pc104_ext_master_n_ipad : signal is "C16"; attribute loc of pc104_ext_memcs16_n_opad : signal is "K2"; attribute loc of pc104_ext_memr_n_opad : signal is "H2"; attribute loc of pc104_ext_memw_n_opad : signal is "H1"; attribute loc of pc104_ext_sbhe_n_opad : signal is "J4"; attribute loc of pc104_ext_sd_iopads : signal is "K15,K11,L14,F16,F15,A15,H11,G14"; attribute loc of pc104_std_aen_opad : signal is "F2"; attribute loc of pc104_std_bale_opad : signal is "L3"; attribute loc of pc104_std_bclk_opad : signal is "G4"; attribute loc of pc104_std_dack1_opad : signal is "A12"; attribute loc of pc104_std_dack2_opad : signal is "T8"; attribute loc of pc104_std_dack3_opad : signal is "E8"; attribute loc of pc104_std_drq1_ipad : signal is "B11"; attribute loc of pc104_std_drq2_ipad : signal is "N8"; attribute loc of pc104_std_drq3_ipad : signal is "H3"; attribute loc of pc104_std_endxfer_ipad : signal is "C15"; attribute loc of pc104_std_iochk_n_ipad : signal is "D14"; attribute loc of pc104_std_iochrdy_ipad : signal is "D16"; attribute loc of pc104_std_ior_n_opad : signal is "G5"; attribute loc of pc104_std_iow_n_opad : signal is "J6"; attribute loc of pc104_std_irq3_ipad : signal is "M8"; attribute loc of pc104_std_irq4_ipad : signal is "E10"; attribute loc of pc104_std_irq5_ipad : signal is "B9"; attribute loc of pc104_std_irq6_ipad : signal is "A11"; attribute loc of pc104_std_irq7_ipad : signal is "C9"; attribute loc of pc104_std_irq9_ipad : signal is "R9"; attribute loc of pc104_std_osc_opad : signal is "H4"; attribute loc of pc104_std_refresh_n_opad : signal is "J3"; attribute loc of pc104_std_reset_out_opad : signal is "F5"; attribute loc of pc104_std_sa_opads : signal is "B7,P1,R10,L9,N6,P11,R3,T14,M3,P7,L4,A9,M2,D3,C10,C12,J2,G1,G6,L5"; attribute loc of pc104_std_sd_iopads : signal is "J13,J12,T15,R14,N15,N16,G16,F13"; attribute loc of pc104_std_smemr_n_opad : signal is "H6"; attribute loc of pc104_std_smemw_n_opad : signal is "K4"; attribute loc of pc104_std_tc_opad : signal is "F4"; attribute loc of rtc_interrupt_n_ipad : signal is "F10"; attribute loc of pwm_opad : signal is "T11"; attribute loc of sys_reset_n_ipad : signal is "B3"; attribute loc of oscillator_enable : signal is "M6"; end entity top_level; architecture synthesis of top_level is component pll is port ( clki : in std_logic; clkop : out std_logic; clkos : out std_logic; clkos2 : out std_logic; lock : out std_logic ); end component pll; signal lpc3141_i : std_logic_vector(15 downto 0); signal lpc3141_o : std_logic_vector(15 downto 0); signal pc104_i : std_logic_vector(15 downto 0); signal enet_i : std_logic_vector(15 downto 0); signal enet_o : std_logic_vector(15 downto 0); signal tc_1 : std_logic; signal tc_2 : std_logic; signal tc_3 : std_logic; signal tc_4 : std_logic; signal tc_5 : std_logic; signal count_1 : std_logic_vector(1 downto 0); signal count_2 : std_logic_vector(2 downto 0); signal count_3 : std_logic_vector(3 downto 0); signal count_4 : std_logic_vector(4 downto 0); signal count_5 : std_logic_vector(5 downto 0); signal pll_lock : std_logic; signal pc104_std_bclk : std_logic; signal pc104_std_bclk_2X : std_logic; begin clock_generator : pll port map ( clki => clk_osc_mhz_14_ipad, clkop => pc104_std_osc_opad, clkos => pc104_std_bclk, clkos2 => pc104_std_bclk_2X, lock => pll_lock ); lpc3141_o <= enet_i when (lpc3141_b_n_stcs0_ipad = '0') else pc104_i; lpc3141_bd_iopads <= lpc3141_o when (lpc3141_b_n_stcs1_ipad = '0' and lpc3141_b_n_oe_ipad = '0') else (others => 'Z'); lpc3141_i <= lpc3141_bd_iopads; pc104_std_sd_iopads <= lpc3141_i( 7 downto 0) when (lpc3141_b_n_stcs1_ipad = '0' and lpc3141_b_n_we_ipad = '0') else (others => 'Z'); pc104_ext_sd_iopads <= lpc3141_i(15 downto 8) when (lpc3141_b_n_stcs1_ipad = '0' and lpc3141_b_n_we_ipad = '0') else (others => 'Z'); pc104_i <= pc104_ext_sd_iopads & pc104_std_sd_iopads; pc104_ext_la_opads <= lpc3141_ba_ipads(15 downto 9); pc104_std_sa_opads <= "0000" & lpc3141_ba_ipads; enet_io_iopads <= lpc3141_i when (lpc3141_b_n_stcs0_ipad = '0' and lpc3141_b_n_we_ipad = '0') else (others => 'Z'); enet_i <= enet_io_iopads; silly_1: process(pc104_std_bclk_2X, sys_reset_n_ipad) begin if (sys_reset_n_ipad = '0') then count_1 <= (others => '0'); elsif rising_edge(clk_osc_mhz_14_ipad) then count_1 <= count_1 + 1; end if; end process silly_1; silly_2: process(clk_osc_khz_32_ipad, sys_reset_n_ipad) begin if (sys_reset_n_ipad = '0') then count_2 <= (others => '0'); elsif rising_edge(clk_osc_khz_32_ipad) then count_2 <= count_2 + 1; end if; end process silly_2; silly_3: process(pc104_std_bclk_2X, sys_reset_n_ipad) begin if (sys_reset_n_ipad = '0') then count_3 <= (others => '0'); elsif rising_edge(clk_lpc3141_clock_out_ipad) then count_3 <= count_3 + 1; end if; end process silly_3; silly_4: process(pc104_std_bclk_2X, sys_reset_n_ipad) begin if (sys_reset_n_ipad = '0') then count_4 <= (others => '0'); elsif rising_edge(clk_lpc3141_sysclk_ipad) then count_4 <= count_4 + 1; end if; end process silly_4; silly_5: process(pc104_std_bclk_2X, sys_reset_n_ipad) begin if (sys_reset_n_ipad = '0') then count_5 <= (others => '0'); elsif rising_edge(clk_lpc3141_256fs_ipad) then count_5 <= count_5 + 1; end if; end process silly_5; tc_1 <= '1' when count_1 = 3 else '0'; tc_2 <= '1' when count_2 = 7 else '0'; tc_3 <= '1' when count_3 = 15 else '0'; tc_4 <= '1' when count_4 = 31 else '0'; tc_5 <= '1' when count_5 = 63 else '0'; pc104_ext_dack7_opad <= pc104_ext_drq7_ipad when tc_1 = '1' else '0'; pc104_ext_dack6_opad <= pc104_ext_drq6_ipad when tc_2 = '1' else '0'; pc104_ext_dack5_opad <= pc104_ext_drq5_ipad when tc_3 = '1' else '0'; pc104_std_dack3_opad <= pc104_std_drq3_ipad when tc_4 = '1' else '0'; pc104_std_dack2_opad <= pc104_std_drq2_ipad when tc_5 = '1' else '0'; pc104_std_dack1_opad <= pc104_std_drq1_ipad; pc104_ext_dack0_opad <= pc104_ext_drq0_ipad; ---- LPC3141 OEM Module GPIO (unnused) lpc3141_gpio_20_opad <= pc104_ext_irq15_ipad; lpc3141_gpio_19_opad <= pc104_ext_irq14_ipad; lpc3141_gpio_18_opad <= pc104_ext_irq12_ipad; lpc3141_gpio_17_opad <= pc104_ext_irq11_ipad; lpc3141_gpio_16_opad <= pc104_ext_irq10_ipad; lpc3141_gpio_15_opad <= pc104_std_irq9_ipad; lpc3141_gpio_14_opad <= pc104_std_irq7_ipad; lpc3141_gpio_13_opad <= pc104_std_irq6_ipad; lpc3141_gpio_12_opad <= pc104_std_irq5_ipad; lpc3141_gpio_11_opad <= pc104_std_irq4_ipad; lpc3141_gpio_4_opad <= pc104_std_irq3_ipad; ---- Junk logic for Ethernet interface enet_reset_n_opad <= '1'; enet_cs_n_opad <= '1'; enet_rd_n_opad <= '1'; enet_wr_n_opad <= '1'; enet_cmd_opad <= (lpc3141_bbls1_ipad or lpc3141_bbls0_ipad or enet_pme_ipad or pc104_std_iochk_n_ipad or pc104_std_iochrdy_ipad or pc104_std_endxfer_ipad or pc104_ext_master_n_ipad) and enet_intr_n_ipad; hs_usb_on_opad <= hs_usb_fault_ipad and rtc_interrupt_n_ipad and clk_lpc3141_clock_out_ipad and clk_lpc3141_sysclk_ipad and clk_lpc3141_256fs_ipad; pwm_opad <= '1'; oscillator_enable <= '1'; pc104_std_bclk_opad <= pc104_std_bclk; end architecture synthesis;