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Digital Input Change-of-State Card

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What is the Digital Input Change-of-State Card?

Concurrent Real-Time’s Change-of-State (COS) card is a 64-channel TTL interface that can track the change of state of digital inputs at 100 MHz (10 nanoseconds). The card features an x4 lane PCI Express interface for high speed transfer of data to and from the card. Individual channels can be masked to disable change detection. A 10 microsecond clock is also output on pin DIO_95 that can synchronize other systems to the clock on the COS card.

See the data sheet

Programmable FPGA Card



Base Frequency100 MHz
Elements128 element FIFO
Transition Value64-bit
Time Stamp64-bit


BoardFPGA-based COS board
Form FactorPCIe x4 FHHL
Multi-Card SupportYes
ConnectorVHDCI 68-pin

Power Requirements

Power RequirementsApproximately 5 watts

Ordering Information

Digital Input Change-of-State CardCP-COS-64
RedHawk Linux DriverWC-CP-FIO
SIMulation Workbench LicenseICS-SWB-1279
1-Meter CableCX-CBL-HSI-F-01
2-Meter CableCX-CBL-HSI-F-02
3-Meter CableCX-CBL-HSI-F-03
Breakout ModuleCX-CBL-AIO-BRKF

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