PCI Express, 5 V, 8-Channel Counter/Timer Device—The PCIe‑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 PCIe‑6612 can perform three simultaneous high-speed DMA transfers.