ANSI INCITS 131 : 1994

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
   3.1 Definitions
   3.2 Symbols and abbreviations
4 General
   4.1 Overview
   4.2 Conventions
5 Physical characteristics
   5.1 Physical description
   5.2 Cable requirements
   5.3 Connector requirements
   5.4 Electrical description
   5.5 SCSI bus
   5.6 SCSI bus signals
   5.7 SCSI bus timing
   5.8 Fast synchronous transfer option
6 Logical characteristics
   6.1 SCSI bus phase
   6.2 SCSI bus conditions
   6.3 SCSI bus phase sequences
   6.4 SCSI pointers
   6.5 Message system description
   6.6 Messages
7 SCSI command and status
   7.1 Command implementation requirements
   7.2 Command descriptor block
   7.3 Status
   7.4 Command examples
   7.5 Command processing considerations and exception conditions
   7.6 Contingent allegiance condition
   7.7 Extended contingent allegiance condition
   7.8 Queued I/O process
   7.9 Unit attention condition
8 All device types
   8.1 Model for all device types
   8.2 Commands for all device types
   8.3 Parameters for all device types
9 Direct-access devices
   9.1 Direct-access device model
   9.2 Command for direct-access devices
   9.3 Parameters for direct-access devices
   9.4 Definitions specific to direct-access devices
10 Sequential-access devices
   10.1 Sequential-access device model
   10.2 Command description for sequential-access devices
   10.3 Parameters for sequential-access devices
   10.4 Definitions specific to sequential-access devices
11 Commands for printer devices
   11.1 Model for printer devices
   11.2 Commands for printer devices
   11.3 Parameters for printer devices
12 Processor devices
   12.1 Model for processor devices
   12.2 Commands for processor devices
   12.3 Parameters for processor devices
   12.4 Definitions specific to processor devices
13 Write-once devices
   13.1 Model for write-once devices
   13.2 Commands for write-once devices
   13.3 Parameters for write-once devices
   13.4 Definitions specific to write-once devices
14 CD-ROM devices
   14.1 Model for CD-ROM devices
   14.2 Commands for CD-ROM devices
   14.3 Parameters for CD-ROM devices
   14.4 Definitions specific to CD-ROM devices
15 Scanner devices
   15.1 Model for scanner devices
   15.2 Commands for scanner devices
   15.3 Parameters for scanner devices
   15.4 Definitions specific to scanner devices
16 Optical memory devices
   16.1 Model for optical memory devices
   16.2 Commands for optical memory devices
   16.3 Parameters for optical memory devices
   16.4 Definitions specific to write-once and optical memory devices
17 Medium-changer devices
   17.1 Medium-changer device model
   17.2 Commands for medium-changer devices
   17.3 Parameters for medium-changer devices
   17.4 Definitions specific to medium-changer devices
18 Communications devices
   18.1 Communications device model
   18.2 Command description for communications devices
   18.3 Parameters for communication devices
   18.4 Definitions specific to communications devices
Index
Annexes
A SCSI signal sequence example
B Fast SCSI skew time
C Other SCSI standardization activities
D Numeric order codes
E Vendor identification

Defines an input/output bus for interconnecting computers and peripheral devices.