时钟频率在“Reference input Clock Speed”选项列表中没有列出,可以使能这个选项,使能这个选项后 Reference input Clock Speed 时钟可以通过在 Advanced Clocking 配置页面配置 M 和 D 的值,并按照公式计 算出你想要的特殊参考时钟频率值。 Reference input Clock Speed:参考时钟。 Cont
PHY to controller clock frequency ratio:用户时钟分频系数,这里只能选择 4 比 1,因此时钟频率等于 DDR4 芯片驱动时钟频率的四分之一。 Specify MMCM M and D on Advanced Clocking Page to calculate Ref Clk:特殊参考时钟选择,如果参考 时钟频率在“Reference input Clock Speed”选项列表中没有列出,可以使能这...
Reference input Clock Speed:参考时钟,本节实验选择10006ps(参考时钟频率和系统时钟频率保持一致即100MHz)。 Controller Options:控制器配置栏,如果使用MIG IP核内部默认的DDR4芯片,则只需要在Memory Part栏选中对应的DDR4芯片型号即可,例如我们板载的DDR4芯片型号为MT40A256M16GE-083E(如果多片DDR4联用注意修改数据...
...Specify MMCM M and D on Advanced Clocking Page to calculate Ref Clk:特殊参考时钟选择,如果参考 时钟频率在“Reference input...可以使能这个选项,使能这个选项后 Reference input Clock Speed 时钟可以通过在 Advanced Clocking 配置页面配置 M 和 D 的值,并按照公式计 算出你想要的特殊参考时钟频率值.....
Reference input Clock Speed：参考时钟，本节实验选择10006ps(参考时钟频率和系统时钟频率保持一致即100MHz...
Ideal for high-performance, high-capacity enterprise and data center systems, our DDR4 Register Clock Driver (RCD) delivers industry-leading I/O performance and margin. It is a critical component for RDIMMs and, when combined with our DDR4 Data Buffer, L
GTY and GTYP Transceiver DC Input and Output Levels GTY and GTYP Transceiver Switching Characteristics GTY and GTYP Transceiver Performance GTY and GTYP Transceiver Configuration Interface Port Switching Characteristics GTY and GTYP Transceiver Reference Clock Switching Characteristics GTY and GT...
B:memory device interface speed(存储设备的接口速度):根据你的DDR4芯片决定,拿我这个为例,我的是2400MTS,DDR4是上下沿两次传输,也就是说一次频率传输两次数据,频率就是2400/2=1200Mhz,换为周期即是833ps. C:reference input clock speed(输入参考时钟):这是你的系统的参考时钟,取决于板子的硬件设计,需要询问...
DDR2 uses the same internal clock speed as DDR, however, the transfer rates are faster due to the enhanced input/output bus signal. DDR2 has a 4-bit prefetch, which is twice that of DDR. DDR2 can also reach data rates of 533 to 800MT/s. DDR2 memory can be installed in pairs to...
Speed up to DDR4-2400 Bidirectional retiming and 1:1 redriving of DDR4 data (DQ) signals Regeneration of data strobe (DQS) signals from input clock FIFOs on the DQ path for decoupling Host and DRAM interface time domains Up to four package ranks supported ...