Matrox Solios eV-CL acquisition section 47
Demultiplexers to support time-multiplexed video sources
Each acquisition path of the board features a demultiplexer. It can deserialize input
from time-multiplexed video sources on a clock cycle basis. Time-multiplexed
video sources can output larger pixel depths and more taps than are possible with
non-time-multiplexed video sources in the same configuration (with the same
amount of cabling). When enabled, the demultiplexer assumes that two video
streams share the same data path and that the streams are interleaved based on the
clock cycle. The demultiplexer assumes that on one clock cycle, the data is from
one stream and that on the next clock cycle, the data is from another stream. The
demultiplexer can only deserialize video inputs that, when combined and, if
necessary, expanded, total a maximum depth of 64 bits per acquisition path.
Expansion refers to the automatic addition of padding zeros on the most
significant bits (MSB) of 10-, 12-, and 14-bit data to create byte aligned 16-bit
data. Expansion is not always necessary.
Lookup tables
Matrox Solios eV-CL has on-board lookup tables (LUTs) that can be used to
precondition input data at acquisition time, before it is stored in an image buffer.
The LUTs on Matrox Solios eV-CLB and eV-CLBL in dual-Base configuration
can be operated in the following configurations per acquisition path
*
:
• 8 palettes of one, two, three, or four 256-entry 8-bit LUTs.
• 4 palettes of one or two 1024-entry 8- or 16-bit LUTs.
• 1 palette of one or two 4096-entry 8- or 16-bit LUTs.
*. For example, two 1024-entry 8-bit LUTs can map 2-tap 10-bit data to 8-bit values. In
addition, one 1024-entry 8-bit LUT can map 1-tap 10-bit data to 8-bit values.
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