=DIFF_SSTL18_II_T_DCI; NET“ddr2_dqs_n ”IOSTANDARD =DIFF_SSTL18_II_T_DCI;我的问题是ddr2_dgs_p / n IO被定义为DIFF_SSTL18_II_T_DC而不是LVDS_25。有没有人对这个问题有所了解?谢谢,布鲁诺ddr2_axi_13.ucf 22 KB felixbury2020-06-11 11:52:56 ...
在AC701板上,我惊讶地看到DDR sysclk输入(IO标准=DIFF_SSTL15,VCCO = 1.5V)由LVDS振荡器驱动而没有交流耦合。在UG471(7系列selectIO)第90页 h1654155957.94712020-07-17 13:45:49 ISE14.7时钟IP核使用,输出时钟恒为0 %;管脚约束NET "clk_in_p"LOC="AA3" |IOSTANDARD=DIFF_SSTL15;NET "clk_in_n"LOC...
set_property IOSTANDARD DIFF_SSTL12 [get_ports {my_diff_io}] 1. 2. set_property: 设置特定属性(在这里设置IO标准)。 IOSTANDARD: 需要设置的属性。 DIFF_SSTL12: 目标的IO标准。 [get_ports {my_diff_io}]: 获取要应用约束的端口名称,这里假设端口名为my_diff_io。 步骤4: 保存并验证 完成约束的...
•未使用可选的内部差分终端(DIFF_TERM = FALSE, 这是默认值)。 •输入引脚的差分信号满足V. IN中的要求 特定器件系列数据手册的推荐工作条件表。 •输入引脚的差分信号满足V. IDIFF(min)要求 特定器件系列的相应LVDS或LVDS_25 DC规格表 数据表。 ds181(artix-7 electrical)列出DIFF_SSTL15的最大输入共...
On the AC701 board, I was surprised to see the DDR sysclk inputs, (IO standard = DIFF_SSTL15, VCCO = 1.5V) driven by a LVDS oscillator without ac coupling. In UG471 (7series selectIO)page 90 it says: It is acceptable to have
GoodDatasheet提供了DIFF_SSTL12_DCI_M中文PDF资料下载地址和DIFF_SSTL12_DCI_M的PDF文件的大小、页数、制造商、功能描述等信息,这里还提供了DIFF_SSTL12_DCI_M相关型号信息。
ddr3_sdram_ck_p[0] (DIFF_SSTL15, requiring VCCO=1.500) and sys_clock (LVCMOS33, requiring VCCO=3.300). I changed the I/O std for ddr3_sdram_ck_p[0] from DIFF_SSTL15 to TMDS_33 . The question is : What the consequences for this action I made ? I attached a picture. thank...
GoodDatasheet提供了DIFF_SSTL12_T_DCI_S中文PDF资料下载地址和DIFF_SSTL12_T_DCI_S的PDF文件的大小、页数、制造商、功能描述等信息,这里还提供了DIFF_SSTL12_T_DCI_S相关型号信息。
If not, what is the highest data rate that diff SSTL-12 can achieve? Thanks. Translate 0 Kudos Reply EngWei_O_Intel Employee 07-16-2021 10:24 AM 1,114 Views Hi Twincreeks This is the understanding we got from the backend team. Since ther...