The sis1160-pci-io is a front-end PCI board with LEMO connectors to interface with the GPIO interconnect pins (J70) of the SIS1160 FMC carrier, which is a commercial PCIe FMC carrier provided by Struck Innovative Systeme (SIS). This auxiliary board gets inserted in a computer, next to the SIS1160 carrier, with a PCI bracket (but does not use the PCI bus), and has 6 digital channels. Four of them are LVDS and two are LVTLL. The direction of every signal or pair can be configured to act as input or output from/into the SIS1160 carrier.

The SIS1160 carrier board is used together with the SFMC01 digitizer, that contains the AD9689 analog-to-digital converter. The current repository features thus an auxiliary board that allows the integration of “events” or “GPIO markers” into the ADC datastream. The lower bit of the acquired ADC data word of each ADC channel can be configured (via the SIS1160 API) to store the status of two selected input channels of the PCI-L I/O add on. Furthermore, the other (output) channels can be used for monitoring the trigger or clock and synchronizing with additional external hardware.

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