Sideband ProtocolsDownload PDFSelected SectionSelected Section and Subsection(s)Entire ManualUpdated2026-07-271 minute(s) readIVN-14811PXIe-1480User Manual GPIO for Interface Adapter ModulesInterface adapter modules expose a set of General-Purpose Input/Output (GPIO) signals over the interface adapter module connector. These signals directly connect the carrier FPGA to the interface adapter module. GPIO signals provide support for user-defined functions, such as camera trigger, strobe, and other application-specific signaling.I2C Interface for Interface Adapter ModulesI2C is a standard bidirectional bus. The I2C bus is the primary interface for configuring SerDes chips and downstream devices such as cameras or imagers.Audio for Interface Adapter ModulesAudio support for interface adapter modules depends on the serial protocol that the interface adapter module uses and the capabilities of the SerDes in use.Power over Coax (PoC) for Interface Adapter ModulesPower Over Coax (PoC) is a feature of GMSL and FPD-Link serial link standards. PoC allows DC power to be delivered over the same coaxial cable used for high-speed serial data. An inductive (bias-tee) filter on each end of the cable separates the DC power component from the high-frequency serial signal, allowing both to coexist on the same conductor.Wake Over Coax (WoC) for Interface Adapter ModulesWake Over Coax uses existing PoC voltage on the cable to signal sleep and wake between the source device and remote devices, such as serializers and cameras.Parent topic: Serializers and Deserializers (SerDes)
GPIO for Interface Adapter ModulesInterface adapter modules expose a set of General-Purpose Input/Output (GPIO) signals over the interface adapter module connector. These signals directly connect the carrier FPGA to the interface adapter module. GPIO signals provide support for user-defined functions, such as camera trigger, strobe, and other application-specific signaling.I2C Interface for Interface Adapter ModulesI2C is a standard bidirectional bus. The I2C bus is the primary interface for configuring SerDes chips and downstream devices such as cameras or imagers.Audio for Interface Adapter ModulesAudio support for interface adapter modules depends on the serial protocol that the interface adapter module uses and the capabilities of the SerDes in use.Power over Coax (PoC) for Interface Adapter ModulesPower Over Coax (PoC) is a feature of GMSL and FPD-Link serial link standards. PoC allows DC power to be delivered over the same coaxial cable used for high-speed serial data. An inductive (bias-tee) filter on each end of the cable separates the DC power component from the high-frequency serial signal, allowing both to coexist on the same conductor.Wake Over Coax (WoC) for Interface Adapter ModulesWake Over Coax uses existing PoC voltage on the cable to signal sleep and wake between the source device and remote devices, such as serializers and cameras.Parent topic: Serializers and Deserializers (SerDes)
GPIO for Interface Adapter ModulesInterface adapter modules expose a set of General-Purpose Input/Output (GPIO) signals over the interface adapter module connector. These signals directly connect the carrier FPGA to the interface adapter module. GPIO signals provide support for user-defined functions, such as camera trigger, strobe, and other application-specific signaling.I2C Interface for Interface Adapter ModulesI2C is a standard bidirectional bus. The I2C bus is the primary interface for configuring SerDes chips and downstream devices such as cameras or imagers.Audio for Interface Adapter ModulesAudio support for interface adapter modules depends on the serial protocol that the interface adapter module uses and the capabilities of the SerDes in use.Power over Coax (PoC) for Interface Adapter ModulesPower Over Coax (PoC) is a feature of GMSL and FPD-Link serial link standards. PoC allows DC power to be delivered over the same coaxial cable used for high-speed serial data. An inductive (bias-tee) filter on each end of the cable separates the DC power component from the high-frequency serial signal, allowing both to coexist on the same conductor.Wake Over Coax (WoC) for Interface Adapter ModulesWake Over Coax uses existing PoC voltage on the cable to signal sleep and wake between the source device and remote devices, such as serializers and cameras.Parent topic: Serializers and Deserializers (SerDes)