请问有没有用过ALTASMI_PARALLEL这个IP的大侠？

psd0208

在该IP的user guide文档里看到： The megafunction uses the clkin signal to feed the EPCS device （DCLK）and to perform internal processing. For a read operation, the clkin signal can toggle at a maximum frequency of 20 MHz. For a fast read operation, the frequency of the clkin signal can toggle at a maximum of 25 MHz. 在Cyclone II Device Handbook里看到： Cyclone II devices use an internal oscillator to generate DCLK. Using the MSEL[] pins, you can select either a 20- or 40-MHz oscillator. 从IP的文档里看到的是DCLK最大只能25M。可是从handbook里看到的是可以达到40M... 请问是我理解错误还是文档写的有问题？

chunlei9924

呵呵，学习中