(SCI) The ANSI/IEEE 1596-1992 standard that defines a point-to-point interface and a set of packet protocols. The SCI protocols use packets with a 16-byte header and 16, 64, or 256 data bytes. Each packet is protected by a 16-bit CRC code.
The standard defines 1 Gbit/second serial fiber-optic links and 1 Gbyte/second parallel copper links. SCI has two unidirectional links that operate concurrently.
The SCI protocols support shared memory by encapsulating bus requests and responses into SCI request and response packets. Packet-based handshake protocols guarantee reliable data delivery. A set of cache coherence protocols are defined to maintain cache coherence in a shared memory system.
Message passing is supported by a compatible subset of the SCI protocols. This protocol subset does not invoke SCI cache coherency protocols.
SCI uses 64-bit addressing and the most significant 16 bits are used for addressing up to 64K nodes.
- Scalable processor architecture
computer (SPARC) An instruction set architecture designed by Sun Microsystems for their own use in 1985. Sun was a maker of 680×0-based Unix workstations. Research versions of RISC processors had promised a major step forward in speed but existing manufacturers were slow to introduce a RISC type processor, so Sun went ahead and developed its […]
- Scalable sampling rate
compression, standard, algorithm (SSR) See, e.g., MPEG-4 AAC SSR. (2001-12-08)
noun 1. a musical wind instrument consisting of a conical, usually brass tube with keys or valves and a mouthpiece with one reed. noun 1. a keyed wind instrument of mellow tone colour, used mainly in jazz and dance music. It is made in various sizes, has a conical bore, and a single reed Often […]
[sak-suh-nee-ahn-hahlt] /ˈsæk sə niˈɑn hɑlt/ noun 1. a state in central Germany. 9515 sq. mi. (24,644 sq. km). Capital: Magdeburg. Saxony-Anhalt /ˈsæksənɪ ˈɑːnhɑːlt/ noun 1. a state of E Germany: created in 1947 from the state of Anhalt and those parts of Prussia formerly ruled by the duchy of Saxony: part of East Germany until […]