参数资料
型号: IPR-SDRAM/DDR2
厂商: Altera
文件页数: 92/106页
文件大小: 0K
描述: IP DDR2 SDRAM CONTROLLER RENEW
标准包装: 1
系列: *
类型: MegaCore
功能: DDR2 SDRAM 控制器
许可证: 续用许可证
A–14
Examples
Example A–3 and Example A–4 show the top-level design files with a dedicated
resynchronization clock and a derived clock from either the write clock or the system
clock.
1
In Example A–3 , the top-level design includes the resync_clk .
Example A–3. Top-Level Design File (Dedicated Resynchronization Clock)
ddr2_top ddr2_top_ddr_sdram
(
.clk (clk),
.clk_to_sdram (unused_clk),
.clk_to_sdram_n (unused_clk_n),
.ddr2_a (ddr2_a),
.ddr2_ba (ddr2_ba),
.ddr2_cas_n (ddr2_cas_n),
.ddr2_cke (ddr2_cke),
.ddr2_cs_n (ddr2_cs_n),
.ddr2_dm (ddr2_dm[3 : 0]),
.ddr2_dq (ddr2_dq),
.ddr2_dqs (ddr2_dqs[3 : 0]),
.ddr2_odt (ddr2_odt),
.ddr2_ras_n (ddr2_ras_n),
.ddr2_we_n (ddr2_we_n),
.dqs_delay_ctrl (dqs_delay_ctrl),
.dqsupdate (dqsupdate),
.fedback_clk_out (fedback_clk_out),
.fedback_resynch_clk (fedback_resynch_clk),
.local_addr (ddr2_local_addr),
.local_be (ddr2_local_be),
.local_init_done (),
.local_rdata (ddr2_local_rdata),
.local_rdata_valid (ddr2_local_rdata_valid),
.local_rdvalid_in_n (),
.local_read_req (ddr2_local_read_req),
.local_ready (ddr2_local_ready),
.local_refresh_ack (),
.local_size (ddr2_local_size),
.local_wdata (ddr2_local_wdata),
.local_wdata_req (ddr2_local_wdata_req),
.local_write_req (ddr2_local_write_req),
.postamble_clk (dedicated_postamble_clk),
.reset_n (reset_n),
.resynch_clk (dedicated_resynch_or_capture_clk),
.stratix_dll_control (stratix_dll_control),
.write_clk (write_clk)
);
? March 2009 Altera Corporation
相关PDF资料
PDF描述
GEM31DTBN-S189 CONN EDGECARD 62POS R/A .156 SLD
GEM31DTBH-S189 CONN EDGECARD 62POS R/A .156 SLD
GEM31DTBD-S189 CONN EDGECARD 62POS R/A .156 SLD
GEM31DTAN-S189 CONN EDGECARD 62POS R/A .156 SLD
10YXJ2200M10X20 CAP ALUM 2200UF 10V 20% RADIAL
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