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Serial Peripheral Interface (SPI) is a de facto standard (with many variants) for synchronous serial communication, used primarily in embedded systems for short-distance wired communication between integrated circuits. SPI uses a master–slave architecture, described here with the terms "main" and "sub", [note 2] [1] where one [note 3] main ...
The Standardized Precipitation Evapotranspiration Index (SPEI) is a multiscalar drought index based on climatic data. It was developed by Vicente-Serrano et al. (2010) at the Institute Pirenaico de Ecologia in Zaragoza, Spain. [ 1] It can be used for determining the onset, duration and magnitude of drought conditions with respect to normal ...
Samples per inch ( SPI) is a measurement of the resolution of an image scanner, in particular the number of individual samples that are taken in the space of one linear inch. It is sometimes misreferred to as dots per inch, though that term more accurately refers to printing resolution. Generally, the greater the SPI of a scanner, the more ...
Hence, total latency of 32 write transfers = 10 x 8 = 80 ns. Total throughput increase factor using 4-beat burst mode = single mode latency/ (total burst mode latency) = 272/80 = 3.4. Total latency of one 8-beat burst mode = (t initial + t sequential) = 8 + 8x (0.5) = 12 ns. For 32 write transactions, required 8-beat transfers = 32/8 = 4.
Continuum mechanics. Stream power, originally derived by R. A. Bagnold in the 1960s, is the amount of energy the water in a river or stream is exerting on the sides and bottom of the river. [1] Stream power is the result of multiplying the density of the water, the acceleration of the water due to gravity, the volume of water flowing through ...
System Packet Interface or SPI as it is widely known is a protocol for packet and cell transfers between PHY and LINK layer devices in multi-gigabit applications. This protocol has been developed by Optical Internetworking Forum (OIF) and is fast emerging as one of the most important integration standards in the history of telecommunications ...
T and − T are the switching thresholds, and M and − M are the output voltage levels. In electronics, a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a ...
Parallel SCSI. Parallel SCSI (formally, SCSI Parallel Interface, or SPI) is the earliest of the interface implementations in the SCSI family. SPI is a parallel bus; there is one set of electrical connections stretching from one end of the SCSI bus to the other. A SCSI device attaches to the bus but does not interrupt it.