FPGA Editor reports one of the Virtex-E DLL outputs as CLK2X90; however, this output pin should be CLK2X180.
This is an error in FPGA Editor. When the CLK2X180 symbol is used as an output of a CLKDLLE primitive, FPGA Editor will report that the output is called "CLK2X90." This is a visual problem only; the output is not CLK2X90 (90 degrees of phase shift), but is, in fact, CLK2X180 (180 degrees of phase shift).
| AR# 9435 | |
|---|---|
| 日期 | 05/14/2014 |
| 状态 | Archive |
| Type | 综合文章 |