50 Appendix A: Glossary
Glossary
•Acquisition path.
A path that has the components to, for example, digitize or capture a video input
signal. Some video sources require multiple acquisition paths.
•ASPM.
Active State Power Management. A hardware PCIe mechanism that autonomously
controls power consumption of the PCIe connectors in a computer. The actual
power consumed by a PCIe device depends on the PCIe traffic and on the
power-saving level to which the PCIe slot is configured. The power-saving level
of the PCIe slot is initialized by the operating system.
•Auxiliary I/O signals.
Auxiliary input/output signals. Non-video digital signals that can support one or
more functionalities depending on the auxiliary signal (for example, trigger input
or timer output). These signals are also known as general purpose I/O signals or
GPIO signals.
•Bandwidth.
A term describing the capacity to transfer data. Greater bandwidth is needed to
sustain a higher transfer rate. Greater bandwidth can be achieved, for example, by
using a wider bus or by increasing the clock frequency at which an interface or a
processing core operates (for example, increasing the DDR4 SDRAM clock
frequency).
•HD-BNC connector.
High Definition Bayonet Neill-Concelman connector. A common connector used
for 75 Ohm coaxial cables. Its fastener uses L-shaped slots to ensure that the coaxial
cable is secured to the Matrox Rapixo CXP board.
To Next Page