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LSI 20160 RAM, ROM, SCAM, SCSI, SCSI-2, SCSI-3, SCSI ID, SCSI Bus, RISC Core, SCSI Device, SCSI SCRIPTS

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RAM	Random Access Memory. The computer’s primary working memory in
	which program instructions and data are stored and are accessible to the
	CPU. Information can be written to and read from RAM. The contents of
	RAM are lost when the computer is turned off.
RISC Core	LSI Logic SCSI chips contain a RISC (Reduced Instruction Set
	Computer) processor, programmed through SCRIPTS microcode.
ROM	Read Only Memory. Memory from which information can be read but not
	changed. The contents of ROM are not erased when the computer is
	turned off.
SCAM	SCSI Conﬁgured AutoMatically. A method to automatically allocate SCSI
	IDs using software when SCAM compliant SCSI devices are attached.
SCSI	Small Computer System Interface. A speciﬁcation for a high-performance
	peripheral bus and command set. The original standard is referred to as
	SCSI-1.
SCSI-2	The SCSI speciﬁcation which adds features to the original SCSI
	standard.
SCSI-3	The SCSI speciﬁcation which adds features to the SCSI-2 standard.
SCSI Bus	A host adapter and one or more SCSI peripherals connected by cables
	in a linear chain conﬁguration. The host adapter may exist anywhere on
	the chain, allowing connection of both internal and external SCSI
	devices. A system may have more than one SCSI bus by using multiple
	host adapters.
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	A SCSI programming language that works with the SCRIPTS processor.
	The SCRIPTS processor fetches SCRIPTS instructions from system
	memory to control processor operation.

A-6	Glossary of Terms and Abbreviations

Copyright © 2001 by LSI Logic Corporation. All rights reserved.

Contents

USER’S GUIDE Electromagnetic Compatibility Notices Page Page Preface Related Publications Revision History Contents Appendix A Glossary of Terms and Abbreviations Customer Feedback Figures Page Tables Page Describing the LSI20160 1.1General Description 1.2 Features 1.2.1 PCI Interface 1.2.2 SCSI Interface 1.2.3 Board Characteristics 1.2.4SCSI Activity LED Interface 1.3 Ultra160 SCSI Beneﬁts 1.3.1 Double Transition (DT) Clocking 1.3.2 Cyclic Redundancy Check (CRC) 1.3.3 Asynchronous Information Protection (AIP) 1.4 SureLINK™ Ultra160 SCSI Domain Validation Beneﬁts 1.5 LVDlink™ Technology Beneﬁts 1.6 TolerANT® Technology Beneﬁts Installing the LSI20160 2.1Quick Installation Procedure 2.2 Detailed Installation Procedure 2.2.1 Before You Start 2.2.2 Selecting a PCI Slot 2.2.3 Inserting the Host Adapter Figure 2.2 Inserting the Host Adapter 2.2.4 Connecting SCSI Peripherals 2.2.4.1 Making Internal SCSI Bus Connections Figure 2.4 Internal SCSI Ribbon Cable to Host Adapter Figure 2.5 Internal SCSI Ribbon Cable to Internal SCSI Device Connection Figure 2.6 Connecting Additional Internal SCSI Devices Figure 2.7 Multiple Internal SCSI Devices Chained Together 2.2.4.2 Making Activity LED Connection Figure 2.8 SCSI LED Connector 2.2.4.3 Making External SCSI Bus Connections Figure 2.9 External Cable to Host Adapter Figure 2.10 External Cable to External SCSI Device Figure 2.11 Multiple External SCSI Devices Chained Together 2.2.5 SCSI Bus Termination 2.2.5.1 Internal SCSI Terminations Figure 2.12 Internal SCSI Device Termination 2.2.5.2 External SCSI Terminations Figure 2.13 External SCSI Device Termination 2.2.6 Setting SCSI IDs Table 2.1 SCSI ID Record 2.3 Completing the Installation Technical Speciﬁcations 3.1Physical Environment 3.1.1 Physical Characteristics 3.1.2Electrical Characteristics 3.1.3 Thermal, Atmospheric Characteristics 3.1.4Electromagnetic Compliance 3.1.5 Safety Characteristics 3.2 Operational Environment 3.2.1 The PCI Interface Table 3.2 PCI Connector J1 (Front)1 Table 3.3 PCI Connector J1 (Back)1 3.2.2 The SCSI Interface 3.2.3 The LED Interface 3.3 Subsystem ID and Subsystem Vendor ID Page Appendix A Glossary of Terms and Abbreviations Bus Mastering Byte CISPR Conﬁguration CRC Dword EEPROM EISA External SCSI Device IRQ ISA Kbyte Local Bus Logical Unit NVRAM Operating System Parity Checking Passive PC99 RAM RISC Core ROM SCAM SCSI SCRIPTS Processor SDMS Single-Ended STA SureLINK Ultra160 SCSI VCCI VDE VHDCI Virtual Memory Index Page Customer Feedback Reader’s Comments http://www.lsilogic.com/contacts/na_salesofﬁces.html