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LSI 20160 CRC, CPU, DMI, Byte, CISPR, Master, Domain, Double, DMA Bus, Clocking, Validation, Conﬁguration, Bus Mastering, Device Driver, Transition (DT)

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Bus Mastering	A high-performance way to transfer data. The host adapter controls the
	transfer of data directly to and from system memory without interrupting
	the computer’s microprocessor. This is the fastest way for multitasking
	operating systems to transfer data.
Byte	A unit of information consisting of eight bits.
CISPR	A special international committee on radio interference (Committee,
	International and Special, for Protection in Radio).
Conﬁguration	Refers to the way a computer is setup; the combined hardware
	components (computer, monitor, keyboard, and peripheral devices) that
	make up a computer system; or the software settings that allow the
	hardware components to communicate with each other.
CRC	Cyclic Redundancy Check is an error detection code used in Ultra160
	SCSI. Four bytes are transferred with the data to increase the reliability
	of data transfers. CRC is used on the Double Transition (DT) Data-In and
	DT Data-Out phases.
CPU	Central Processing Unit. The “brain” of the computer that performs the
	actual computations. The term Microprocessor Unit (MPU) is also used.
DMA Bus	A feature that allows a peripheral to control the ﬂow of data to and from
Master	system memory by blocks, as opposed to PIO (Programmed I/O) where
	the processor is in control and the ﬂow is by byte.
Device Driver	A program that allows a microprocessor (through the operating system)
	to direct the operation of a peripheral device.
Differential SCSI	A hardware conﬁguration for connecting SCSI devices. It uses a pair of
	lines for each signal transfer (as opposed to Single-Ended SCSI which
	references each SCSI signal to a common ground).
DMI	Desktop Management Interface.
Domain	Domain Validation is a software procedure in which a host queries a
Validation	device to determine its ability to communicate at the negotiated Ultra160
	data rate.
Double	In DT Clocking data is sampled on both the asserting and deasserting
Transition (DT)	edge of the REQ/ACK signal. DT Clocking may only be implemented on
Clocking	an LVD SCSI bus.

A-2	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