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November 2003
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Concurrent Technologies introduces its new low power PMC based
single/dual channel Ultra160 SCSI controller, capable of SCSI
synchronous data transfer rates of up to 160 Mbytes/s. The SC
PMC/160 provides board options of either one or two
independent Ultra160 SCSI channels by taking full advantage of
the LSI53C10x0R Ultra160 SCSI controller family. The SC
PMC/160 will i) improve CPU utilization, ii) maximize PCI bus
transfer efficiency, iii) maximize SCSI I/O transfer
reliability and iv) maximize SCSI drive compatibility.
Supporting a wide range of operating systems, the SC PMC/160
is suitable for storage applications such as server systems,
distributed computing, video-on-demand or image/signal
processing.
To improve CPU utilization, the Ultra160 SCSI
controller features a DMA FIFO and a SCSI SCRIPTS™ processor
with 8 Kbytes on-chip SCRIPTS storage. To maximize PCI bus
transfer performance, the SC PMC/160 PCI interface operates up
to 64-bit/66MHz, offering up to 528 Mbytes/s zero wait state
data bursts. Plus, the SCRIPTS instruction storage allows all
accesses to remain internal, reducing the time spent on the
PCI bus. To maximize reliable end-to-end SCSI I/O transfers,
the controller features SureLINK™ domain validation, Cyclic
Redundancy Check (CRC) and Asynchronous Information Protection
(AIP). To maximize SCSI drive compatibility, it provides
integrated LVDlink™ transceivers to support (using
auto-sensing) either Low Voltage Differential (LVD) or
single-ended (SE) SCSI buses automatically.
The dual channel SC PMC/160-00 and single channel SC
PMC/160-01 options can support (narrow and wide) Fast SCSI,
Ultra SCSI, Ultra2 SCSI, and wide Ultra160 SCSI standards.
Both options provide a front panel 68-way High Density SCSI
connector and the dual channel option supports the second
channel via the rear I/O P4 PMC connector. The PMC PCI
interface is compatible with both 3.3V and 5V PCI signaling.
The SC PMC/160 can be used with any board level product
featuring a standard PMC host interface, including Concurrent
Technologies' CompactPCI, VME or Multibus II based PMC host
boards.
The SC PMC/160 is fitted with 512 Kbytes Flash EPROM,
pre-programmed with the SCSI BIOS and on-board configuration
utility. This allows, for example, the SC PMC/160 to be
configured to boot the operating system via the SCSI
interface. For ease of integration, many of today’s leading
operating systems are supported including Linux®, Windows® 2000, Windows NT®, Windows® XP Embedded, VxWorks® and Solaris™.
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