Does the Spartan-6 LX family or Spartan3A support the Multipoint-LVDS specifications? We need input and ouput buffers compliant to M-LVDS type1 and types 2. Also , the buffers should be 5V LVTTL tolerant.
Can Spartan-6 Support M-LVDS ?
Started by ●April 9, 2010
Reply by ●April 9, 20102010-04-09
a, If it is not in the data sheet, then it isn't supported. I have no idea what "multi-point" LVDS is: sounds like someone's idea of how to ruin a perfectly good point to point IEEE standard! OK, I just read about it on Wikipedia, and that confirms my suspicions ... There is the "bus-LVDS" which we 'invented' and supported, but the signal integrity of that is a compromise at best, and I have never really liked to deal with it at all. Regardless, it does work (within its limits). For 5v tolerance, I suggest level shifters, or using resistors. At these advanced technology nodes we are lucky to be able to still use 3.3v IO! Austin
Reply by ●April 9, 20102010-04-09