Historical
INCITS 302-1998[S2013]
Information Technology - SCSI Parallel Interface-2 (SPI-2)
Defines the mechanical, electrical, timing, and protocol requirements of the SCSI parallel interface to allow conforming devices to inter-operate. The SCSI parallel interface is a local I/O bus that may be operated over a wide range of transfer rates.
InterNational Committee for Information Technology Standards [incits]