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FIFO Buffer

On-board memory dedicated to the temporary storage of image pixel data

The FIFO buffer is a large on-board memory that is entirely dedicated to the temporary storage of image pixel data.

It decouples the CoaXPress data flow from the PCI Express data flow. Temporary dropout of the PCI Express data flow are absorbed by the FIFO buffer while ensuring a reliable CoaXPress data acquisition.

It enables burst-mode CoaXPress data acquisition at the highest data rates regardless the limits of the PCI Express interface.

The total on-board memory is product-dependent.

Total memory size
Value Applicable products
512 MB
1 GB

There is one FIFO Buffer dedicated to each GenTL Data Stream. Therefore the on-board memory is partitioned as follows:

Memory partition size per datastream
Value Applicable firmware variants
128 MB
256 MB
512 MB

1 GB