SummerCart64/fw/rtl/vendor/lcmxo2/pll.sv
2024-05-05 07:08:44 +02:00

37 lines
721 B
Systemverilog

module pll (
input inclk,
output logic reset,
output clk,
output sdram_clk
);
logic pll_sdram_clk;
logic buf_sdram_clk;
logic pll_lock;
pll_lattice_generated pll_lattice_generated_inst (
.CLKI(inclk),
.CLKOP(clk),
.CLKOS(pll_sdram_clk),
.LOCK(pll_lock)
);
ODDRXE oddrxe_sdram_clk_inst (
.D0(1'b1),
.D1(1'b0),
.SCLK(pll_sdram_clk),
.RST(1'b0),
.Q(buf_sdram_clk)
);
OB ob_sdram_clk_inst (
.I(buf_sdram_clk),
.O(sdram_clk)
) /* synthesis IO_TYPE="LVCMOS33" */;
always_ff @(posedge clk) begin
reset <= ~pll_lock;
end
endmodule