Avago Technologies LSI53C1030 - Manual (Page 24)

1-8 Introduction
Version 2.2 Copyright © 2001, 2002, 2003 by LSI Logic Corporation. All rights reserved.
1.5 Benefits of SureLINK (Ultra320 SCSI Domain Validation)
SureLINK Domain Validation software ensures robust SCSI interconnect
management and low risk Ultra320 SCSI implementations by extending
the domain validation guidelines documented in the SPI-4 specifications.
Domain validation verifies that the system is capable of transferring data
at Ultra320 SCSI speeds, allowing the LSI53C1030 to renegotiate to a
lower data transfer speed and bus width if necessary. SureLINK Domain
Validation is the software control for the domain validation manageability
enhancements in the LSI53C1030. SureLINK Domain Validation software
provides domain validation management at boot time as well as during
system operation.
SureLINK Domain Validation ensures robust system operation by
providing 3 levels of integrity checking on a per-device basis: Basic
(Level 1) with inquiry command, Enhanced (Level 2) with read/write
buffer and Margined (Level 3) with margining of drive strength and slew
rates.
1.6 Benefits of LVDlink Technology
The LSI53C1030 supports Low Voltage Differential (LVD) through
LVDlink technology. This signalling technology increases the reliability of
SCSI data transfers over longer distances than are supported by SE
(Single Ended) SCSI. The low current output of LVD allows the I/O
transceivers to be integrated directly onto the chip. To allow the use of
the LSI53C1030 in both legacy and Ultra320 SCSI applications, this
device features universal LVDlink transceivers that support LVD SCSI
and SE SCSI.