I/O Std,Vcco,Slew,Drive Strength:显示I/O端口的参数值; Off-Chip Termination:显示每个I/O标准的默认端接。比如FP_VTT_50表示远端并联50Ω的VTT端接类型;HSTL_1表示远端并联40Ω的VTT端口类型。具体的端接类型可以在ug471(7系列)和ug571(UltraScale系列)中查看; Remaining Margin %:显示Bank中剩余的噪声裕...
I/O Std,Vcco,Slew,Drive Strength:顯示I/O埠的引數值; Off-Chip Termination:顯示每個I/O標準的預設端接。比如FP_VTT_50表示遠端並聯50Ω的VTT端接型別;HSTL_1表示遠端並聯40Ω的VTT埠型別。具體的端接型別可以在ug471(7系列)和ug571(UltraScale系列)中檢視; Remaining Margin %:顯示Bank中剩餘的噪聲裕...
4.1.1 突发长度(Burst Length,BL) 由于DDR3的预取为8bit,所以突发传输周期BL也**固定**为8,而对于DDR2和早期的DDR架构系统,BL=4也是常用的,DDR3为此增加了一个4bitBurstChop(突发突变)模式,即由一个BL=4的读取操作加上一个BL=4的写入操作合成一个BL=8的数据突发传输,届时可通过地址线来控制这一突发模式。
This feature set includes programmable control of output strength and slew rate, on-chip termination using digitally- controlled impedance (DCI), and the ability to internally generate a reference voltage (INTERNAL_VREF). Depending on the I/O standard, Xilinx DCI can either control the output ...
This version is hardcoded to use an FTDI cable with an FT2232C chip. It does not use MPSSE but rather bitbang mode. It uses ftdi_write_async which might not be available on your platform. You can use the (much slower) non-async version instead. Have fun! Binary file added BIN +4.94...