5.5.4. On-Chip I/O Termination in Intel® Cyclone® 10 GX Devices
Serial (RS) and parallel (RT) OCT provides I/O impedance matching and termination capabilities. OCT maintains signal quality, saves board space, and reduces external component costs.
The Intel® Cyclone® 10 GX devices support OCT in all FPGA I/O banks. For the 3 V I/Os, the I/Os support only OCT without calibration.
|Direction||OCT Schemes||I/O Type Support|
|LVDS I/O||3 V I/O|
|Output||RS OCT with calibration||Yes||—|
|RS OCT without calibration||Yes||Yes|
|Input||RT OCT with calibration||Yes||—|
|RD OCT (LVDS I/O standard only)||Yes||—|
|Bidirectional||Dynamic RS and RT OCT||Yes||Yes|
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