ISO/IEC 14776-112:2002 信息技术-小型计算机系统界面-第112部分：并行接口-2

标准编号：ISO/IEC 14776-112:2002

中文名称：信息技术-小型计算机系统界面-第112部分：并行接口-2

英文名称：Information technology — Small Computer System Interface (SCSI) — Part 112: Parallel Interface-2 (SPI-2)

发布日期：2002-05

标准范围

SCSI并行接口是一个本地接口可在多种传输速率下运行的I/O总线。SCSI并行的目标接口包括:a） 在一类设备中为主机提供设备独立性。因此，不同的磁盘可以将驱动器、磁带机、打印机、光盘驱动器和其他设备添加到主机无需修改通用系统硬件的计算机。b） 提供兼容性，使符合要求的SCSI-2设备可以与SCSI-3设备，前提是系统工程已正确完成。本国际标准定义了设备的机械、电气、定时和协议要求SCSI并行接口，允许符合要求的设备进行互操作。接口协议包括多个启动器连接的规定以及多个目标。本标准定义了用于互连计算机和设备的输入/输出总线的物理属性外围设备。

The SCSI parallel interface is a localI/O bus that may be operated over a wide range of transfer rates.The objectives of the SCSI parallelinterface are:a) To provide host computers with device independence within a class of devices. Thus,different diskdrives, tape drives, printers, optical media drives and other devices may be added to the hostcomputers without requiring modifications to generic system hardware.b) To provide compatibility such that properly conforming SCSI-2 devices may interoperate withSCSI-3 devices given that the systems engineering is correctly done.This international standard defines the mechanical, electrical, timing and protocol requirements of theSCSI parallel interface to allow conforming devices to interoperate. The interface protocol includes provision for the connection of multiple initiatorsand multiple targets. This standard defines the physical attributes of an input/output bus for interconnecting computers andperipheral devices.

标准预览图