例说FPGA连载41:DDR控制器集成与读写测试之DDR2 IP核接口描述
IP core
ddr2_controller ddr2_controller_inst (
.local_address(local_address),
.local_write_req(local_write_req),
.local_read_req(local_read_req),
.local_burstbegin(local_read_req | local_write_req),
.local_wdata(local_wdata),
.local_be(8'hff),
.local_size(3'd1),
.global_reset_n(sys_rst_n),
.pll_ref_clk(clk_100m),
.soft_reset_n(1'b1),
.local_ready(local_ready),
.local_rdata(local_rdata),
.local_rdata_valid(local_rdata_valid),
.local_refresh_ack( ),
.local_init_done(local_init_done),
.reset_phy_clk_n(reset_phy_clk_n),
.mem_odt(mem_odt),
.mem_cs_n(mem_cs_n),
.mem_cke(mem_cke),
.mem_addr(mem_addr),
.mem_ba(mem_ba),
.mem_ras_n(mem_ras_n),
.mem_cas_n(mem_cas_n),
.mem_we_n(mem_we_n),
.mem_dm(mem_dm),
.phy_clk(phy_clk),
.aux_full_rate_clk( ),
.aux_half_rate_clk( ),
.reset_request_n( ),
.mem_clk(mem_clk),
.mem_clk_n(mem_clk_n),
.mem_dq(mem_dq),
.mem_
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