请问我是否需要在扩展卡上的3.3v逻辑和FPGA连接之间安装QuickSwitches？

大家好，
所以我有一个闪亮的新SP605和XM105配合它。
我正在设计视频/音频采集卡，并且在制作FMC变体之前将在XM105上进行调试。
我想知道S6引脚的电压稳健性。
我知道它们在FMC卡上的运行速度为2.5v，这是否意味着我需要在扩展卡上的3.3v逻辑和FPGA连接之间安装QuickSwitches（或类似设备）？
通常我会这么认为，但我昨晚读到“某个地方”（对不起，新宝宝，这意味着在喂食/摇摆时有很多额外的时间阅读网络 - 新生儿睡觉（iPad很棒！），但是
很少实际的睡眠......）如果3.3v信号作为扩展线上的输入呈现，S6就可以了......驱动2.5v就可以了（2v以上的任何东西都算作逻辑高）但是我
在我真正得到它的任何用途之前，我不想炸毁这张漂亮的新卡！
谢谢
西蒙



以下为原文

Hi all,

So I have a shiny new SP605 and the XM105 to go with it. I'm in the process of designing a video/audio-capture card, and will be debugging it on the XM105 before making an FMC variant.

I was wondering about the voltage robustness of the S6's pins. I know they're running at 2.5v on the FMC card, so does that mean I need to put QuickSwitches (or similar) in place in-between my 3.3v logic on the expansion card and the connection to the FPGA ?

Normally I'd assume so, but I read "somewhere" last night (sorry, new baby, which means lots of extra time for reading the web while feeding/rocking-the newborn-to-sleep (iPad's are great!), but very little actual sleep...) that the S6 would be ok if a 3.3v signal was presented as an input on the expansion lines... Driving 2.5v will be fine (anything above 2v will count as logic-high) but I don't want to blow up the nice new card before I really get any use out of it!

Thanks
  Simon