LSI8952U
SCSI Host Adapter
KEY APPLICATIONS
鈥?High-performance desktop PCs
and workstations
鈥?Intersystem connections:
server and workstation to RAID,
network management
鈥?Ultra2 SCSI hard drives in servers,
clustered servers, workstations
and high-end desktops
鈥?Upgrade systems to Ultra2-level
performance with Ultra2 drives
Bus Interface:
3/5V PCI
PCI Mode:
Bus Master
Plug-and-Play:
Yes
SCSI Rate:
80 Mbps synchronous
14 MBps asynchronous
SCSI Bus:
16-bit SE and LVD
Bootable:
Yes
No. of SCSI Devices:
15
SCSI Connectors:
Internal: 68-pin HD
External: 68-pin HD
The LSI8952U PCI-to-Ultra SCSI host
adapter combines Ultra SCSI data transfer
rates with reliable data integrity.
OVERVIEW
The LSI8952U PCI-Ultra2 SCSI host adapter by LSI Logic matches high
performance and Ultra2 SCSI data transfer rates, with the speed of the PCI
system bus. As part of LSI Logic鈥檚 Ultra2 host adapter family, the LSI8952U
supports wide (16-bit) Fast, Ultra, or Ultra2 SCSI devices. The LSI8952U and
its Ultra2 complement, the LSI8951U, are ideal host connections to RAID
controllers and other demanding I/O applications in the high-performance
workstation and server markets.
Connecting up to 15 SCSI devices is as simple as plugging in the
LSI8952U host adapter and loading the drivers. New systems can start with
the LSI8952U and wide Fast/Ultra devices and then improve performance up
to 80 MBps by replacing them with new Ultra2 devices. As compared to Ultra
SCSI designs, Ultra2 provides twice the performance and greater flexibility
with increased cable lengths.
The flexibility, functionality and performance of the LSI8952U host
adapter comes from the on-board LSI Logic LSI53C895 PCI-Ultra2 single-chip
controller design. System design flexibility is provided by the LSI8952U鈥檚
ability to automatically switch from single-ended operation for legacy Fast/
Ultra devices to universal low voltage differential (LVD) operation when Ultra2
devices are connected. Using LVDlink
鈩?/div>
(Low Voltage Differential) technology,
LSI Logic鈥檚 implementation of LVD transceivers, the LSI8952U provides superior
performance, device connectivity and signal reliability. These LVDlink
transceivers provide the data reliability of differential signaling without the
high cost of high voltage differential transceivers.
Setting up hard drives and other wide Fast/Ultra legacy or Ultra2 SCSI
devices is fast and easy with built-in SCAM (SCSI Configured Automatically)
and SCSI bus configuration utilities. The board鈥檚 PCI bus interface provides
Plug-and-Play installation without jumpers, switches, IRQs, system DMA or
addresses to set.
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