ANSI INCITS 302 : 1998 : R2003

Foreword
1 Scope
2 Normative references
   2.1 Approved references
   2.2 References under development
   2.3 Other references
3 Definitions, symbols, abbreviations, and conventions
   3.1 Definitions
   3.2 Symbols and abbreviations
   3.3 Keywords
   3.4 Conventions
   3.5 Notation for Procedures and Functions
4 General
   4.1 Overview
5 SCSI parallel interface connectors
   5.1 Nonshielded connector
   5.2 Shielded connector
   5.3 Connector contact assignments
6 SCSI bus interconnect
   6.1 SCSI bus cables
   6.2 Interconnect characteristics for signals
   6.3 Decoupling characteristics for TERMPWR and TERMPWRQ lines
   6.4 Connection requirements for RESERVED lines
   6.5 Cables used with SE transceivers
   6.6 Cables used with differential transceivers
7 SCSI parallel interface electrical characteristics
   7.1 SE alternative
   7.2 LVD alternative
   7.3 LVD/MSE multimode alternative
   7.4 HVD alternative
   7.5 Terminator power
8 SCSI bus signals
   8.1 Signal descriptions
   8.2 Parity checking rules
   8.3 Signal states
   8.4 OR-tied signals
   8.5 Signal sources
9 SCSI parallel bus timing
   9.1 Timing description
   9.2 Measurement points
   9.3 Setup and hold timings
10 Removal and insertion of SCSI devices
   10.1 Case 1 - Power-off during removal or insertion
   10.2 Case 2 - RST signal asserted continuously during removal
        or insertion
   10.3 Case 3 - Current I/O processes not allowed during insertion
        or removal
   10.4 Case 4 - Current I/O process allowed during insertion or
        removal
11 Logical characteristics
   11.1 SCSI bus phases
   11.2 SCSI bus conditions
   11.3 SCSI bus phase sequences
   11.4 SCSI pointers
   11.5 SCSI Interlocked Protocol messages
   11.6 Command processing considerations and exception conditions
   11.7 Use of disconnect-reconnect page parameters
   11.8 SCSI parallel interface services
Annexes
Annex A (normative) Additional requirements for LVD SCSI drivers
        and receivers
   A.1 System level requirements
   A.2 Driver requirements
   A.3 Receiver characteristics
   A.4 Transceiver characteristics
Annex B (normative) SCSI configured automatically (SCAM)
   B.1 Model
   B.2 Glossary
   B.3 SCAM requirements
   B.4 SCAM protocol
   B.5 SCAM operations
Annex C (normative) SCSI bus fairness
   C.1 Model
   C.2 Determining fairness by monitoring prior bus activity
   C.3 Fairness algorithm
   C.4 Additional comments
Annex D (normative) SCA-2 Connector pinouts
   D.1 SCA-2 Signal Definitions
Annex E (informative) Interconnecting buses of different widths
Annex F (informative) Cabling and cable measurement method
        recommendations
   F.1 Cabling
   F.2 Cable measurement
Annex G (informative) Transmission line considerations for
        fast-20 data transfer rates
Annex H (informative) Measuring SE pin capacitance
Annex I (informative) SCSI ICONS
Annex J (informative) Example of HVD terminator network
Annex K (informative) SCSI-3 to SCSI-2 terminology mapping

Delineates 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.