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The *sis1160-pci-io* is a front-end PCI board with LEMO connectors to interface with the GPIO interconnect pins of the [SIS1160 FMC carrier](https://www.struck.de/sis1160.html).
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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. Three of them are direct outputs from the SIS1160 carrier (LVDS). A fourth one (LVDS) is user-configurable (input or output). The two remaining channels (LVTTL) are input channels that are forwarded to the SIS1160 carrier.
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The [SIS1160 FMC carrier board ](https://www.struck.de/sfmc01.html) 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 bits of the acquired ADC data can be configured to store the status of the input channels of the PCI-L I/O add on. Furthermore, the 3 output channels can be used for monitoring the trigger or clock and synchronizing with additional external hardware.
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The SIS1160 carrier board is used together with the [SFMC01](https://www.struck.de/sfmc01.html) digitizer, that contains the [AD9689](https://www.analog.com/en/products/ad9689.html) 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 bits of the acquired ADC data words can be configured (via the SIS1160 API) to store the status of the input channels of the PCI-L I/O add on. Furthermore, the 3 output channels can be used for monitoring the trigger or clock and synchronizing with additional external hardware.
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![PCB 2D view](uploads/9723288b14b8e6cf164da0302a6bc885/PCB2D.svg)
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![PCB 3D view](uploads/f957d394e561ec517bb4f0c4758f7584/PCB.png)
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