参数资料
型号: IPR-SDRAM/DDR2
厂商: Altera
文件页数: 91/106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–13
Examples
Figure A–10. Inserting an Intermediate Postamble Register
resynched_data
inter_rdata
d q _capt u re
fed b ack_resynched_data
inter_rdata
d q
D
Q
D
Q
D
Q
D
Q
D
Q
d q s
resynch_clk
Q
D
Q
D
Q
D
Fed b ack
Clock Inp u t
Fed b ack
PLL
System
PLL
clk
postam b le_clk
Present when
Intermediate Postamble
Register is On
Examples
Example A–1 and Example A–2 show the generated PLLs and the PLL outputs for the
following options:
Use fedback clock = On
Manual resynchronization control = On
Resynchronization clock setting = Dedicated
Manual postamble control = On
Postamble clock setting = Dedicated
Example A–1. System PLL and Clock Outputs
ddr_pll_stratixii g_stratixpll_ddr_pll_inst
(
.c0 (clk),
.c1 (write_clk),
.c2 (dedicated_resynch_or_capture_clk),
.inclk0 (clock_source)
);
Example A–2. Fedback PLL and Clock Outputs
ddr_pll_fb_stratixii g_stratixpll_ddr_fedback_pll_inst
(
.c0 (fedback_resynch_clk),
.c1 (dedicated_postamble_clk),
.inclk0 (fedback_clk_in)
);
? 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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