VSC205
LVD SCSI Enclosure
Management Controller
Product Brief
Overview
Device Features
The VSC205 is an enclosure management controller
for peripheral storage applications. This device
supports in-band and out of band management
strategies. The VSC205 implements in-band SES
and SAF-TE enclosure management via the
integrated SCSI interface. Out of band solutions
are possible using IPMI (Intelligent Platform
Management Interface) or through a customer
unique approach.
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Integrated SCSI Controller with LVD or Single
Ended operation over a wide SCSI bus
Target and Initiator mode with wide SCSI
arbitration and selection support
Disconnect and reselect support minimizing
SCSI bus connect time
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Three master/slave mode I2C serial interfaces
32-bit, 40Mhz RISC CPU w/debug port
RS-232 Monitor Port
IPMI 1.0 Compatible
JBOD and RAID subsystem developers are provided
a common hardware and software platform, which
supports all common subsystem diagnostic and
enclosure management strategies. The VSC205
may be used as the master controller of a I2C serial
interface communicating with scalable slave
backplane controllers such as Vitesse VSC055/050
and other industry standard devices.
External Flash and/or SRAM (60ns to 350ns)
Two integrated 8K byte user data SRAMs
3 bits of user definable general purpose I/O with
up to 3 external interrupts
General purpose UART
160 PQFP Package
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Software Development Kit Features
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Modular architecture to support migration to
other I/O technologies and protocols
Extensive peripheral device library
LVD/SE
SCSI Bus
Local I/O (x3)
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Power Supplies
& Fans
Sample Personality Module source code
VITESSE
VSC205
LVD SCSI
Enclosure
Controller
SCSI Applications
Wide or Narrow SCSI Bus
The VSC205 offers dedicated port enclosure
management across a parallel SCSI bus.
The
VSC205’s integrated LVD SCSI controller is used to
provide a high performance, SES or SAF-TE
solution. No external components are required with
this approach; the VSC205 integrates both the data
Flash
(1M x 8)
Drive 0
Drive 1
Drive 2
Drive 3
Drive 4
Drive 5
Drive 6
Drive 7
I2C Serial
I/F
VITESSE
Backplane
Controller
and command buffers and control logic.
This
architecture provides system designers with a
common platform for various SCSI bus speeds and
physical interfaces.
X24C16
EEPROM
Architecture
LM75
(Temp)
System Level Integration (SLI) techniques were
used to create a complete system on a chip. The
VSC205 integrates a RISC embedded processor
and additional DMA, memory and controller
functionality.
Typical Application Block Diagram
The VSC205 includes three, I2C serial interface bus
master controllers. These controllers may be used
to interface to off-the-shelf instrumentation and
control devices commonly used in environmental