LSI SYM8953U manual Scsi Device, Processor, Single-Ended, Synchronous Data Transfer, System Bios

SCSI Device	Any device that conforms to the SCSI standard and is attached to the
	SCSI bus by a SCSI cable. This includes SCSI host adapters and SCSI
	peripherals.
SCSI ID	A way to uniquely identify each SCSI device on the SCSI bus. Each SCSI
	bus has eight available SCSI IDs numbered 0 through 7 (or 0 through 15
	for Wide SCSI). The host adapter usually gets the highest ID (7 or 15)
	giving it priority to control the bus.

SCSI SCRIPTS

SCRIPTS

Processor

A SCSI programming language that works with the SCRIPTS processor that is embedded on the SYM53C8XX device. These SCRIPTS reside in in host computer system memory.

The SCRIPTS processor allows users to fine tune SCSI operations with regard to unique vendor commands or new SCSI specifications. The SCRIPTS processor fetches SCRIPTS instructions from system memory to control operation of the SYM53C8XX device.

SDMS

Single-Ended

SCSI

SCSI Device Management System. A LSI Logic software product that manages SCSI system I/O.

A hardware specification for connecting SCSI devices. It references each SCSI signal to a common ground. This is the most common method (as opposed to differential SCSI which uses a separate ground for each signal).

STA	SCSI Trade Association. A group of companies that cooperate to
	promote SCSI parallel interface technology as a viable mainstream I/O
	interconnect for commercial computing.

Synchronous Data Transfer

One of the ways data is transferred over the SCSI bus. Transfers are clocked with fixed frequency pulses. This is faster than asynchronous data transfer. Synchronous data transfers are negotiated between the SCSI host adapter and each SCSI device.

System BIOS	Controls the low-level POST (Power On Self Test), and basic operation
	of the CPU and computer system.
Ultra SCSI	A standard for SCSI data transfers. It allows a transfer rate of up to
	20 Mbytes/s over an 8-bit SCSI bus and up to 40 Mbytes/s over a 16-bit
	SCSI bus. SCSI Trade Association (STA) supports using the term “Ultra
	SCSI” over the older term “Fast-20”.

B-6 Glossary of Terms and Abbreviations