PXIe, 5 V, 8-Channel PXI Counter/Timer Module - The PXIe‑6612 performs encoder position measurement, event counting, period measurement, pulse-width measurement, pulse generation, pulse-train generation, and frequency measurement. It features eight counter/timers, digital debouncing filters, and TTL/CMOS‑compatible digital I/O. The PXIe‑6612 can perform three simultaneous high-speed DMA transfers.