Max. frequency of acquiring data in PCI 6515

Hello,

I'm using PCI 6515 digital inputs to acquire a 64K quadrature encoder pulses attached to a motor with maximum speed of 3000 RPM. The encoder has two options of resolutions/revolution (32K or 64K). At this rate, with 3000 rpm speed - or 0.02 revolution/sec - the encoder produce pulses at 2.73 MHz (if 32K resolution is selected) or 5.46 MHz (if 64K resolution is selected). I looked in the datasheet and user manual of PCI 6515 (http://www.ni.com/pdf/manuals/372172b.pdf) but I couldn't find whether PCI 6515 digital inputs can successfully acquire or detect the encoder pulses at this rate.

I really appreciate your help.

Thanks.