LSI53C895A PCI to Ultra2 SCSI Controller
1-1
Chapter 1
General Description
Chapter 1 is divided into the following sections:
•
Section 1.1, “New Features in the LSI53C895A”
•
Section 1.2, “Benefits of Ultra2 SCSI”
•
Section 1.3, “Benefits of LVDlink”
•
Section 1.4, “TolerANT® Technology”
•
Section 1.5, “LSI53C895A Benefits Summary”
The LSI53C895A PCI to Ultra2 SCSI Controller brings Ultra2 SCSI
performance to host adapter, workstation, and general computer designs,
making it easy to add a high-performance SCSI bus to any PCI system.
It supports Ultra2 SCSI transfer rates and allows increased SCSI
connectivity and cable length with Low Voltage Differential (LVD)
signaling for SCSI devices. The LSI53C895A is packaged in a
208 Plastic Quad Flat Pack (PQFP) and a 272 Ball Grid Array (BGA).
The LSI53C895A can be used as a drop-in replacement for the
LSI53C895.
The LSI53C895A has a local memory bus for local storage of the
device’s BIOS ROM in flash memory or standard EEPROMs. The
LSI53C895A supports programming of local flash memory for updates to
BIOS.
Appendix B, “External Memory Interface Diagram Examples,”
has
system diagrams showing the connections of the LSI53C895A with an
external ROM or flash memory.
LVDlink™ technology is the LSI Logic implementation of LVD. LVDlink
transceivers allow the LSI53C895A to perform either Single-Ended (SE)
or LVD transfers. It also supports external High Voltage Differential (HVD)
transceivers. The LSI53C895A integrates a high-performance SCSI core,
a 64-bit PCI bus master DMA core, and the LSI Logic SCSI SCRIPTS™
processor to meet the flexibility requirements of SCSI-3 and Ultra2 SCSI
Содержание LSI53C895A
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