LSI LSI22902 사용자 설명서
Figure 1: SYM22902 Dual Channel Ultra2 SCSI MiniHAB Host Adapter Board
Introducing the Symbios
®
SYM22902 Low Profile Host Adapter Board
Dual-Channel Ultra2 SCSI MiniHAB™ Host Adapter Board Designed
for 1U and 2U High Rackable Servers
for 1U and 2U High Rackable Servers
The Symbios SYM22902 is a dual-channel Ultra2 SCSI host adapter board based
on the Low Profile PCI form factor. The SYM22902 host adapter provides two
independent Ultra2 SCSI channels offering increased connectivity without
utilizing additional PCI slots. The external channels support LVD and single-
ended SCSI while the internal channel supports LVD SCSI.
on the Low Profile PCI form factor. The SYM22902 host adapter provides two
independent Ultra2 SCSI channels offering increased connectivity without
utilizing additional PCI slots. The external channels support LVD and single-
ended SCSI while the internal channel supports LVD SCSI.
The SYM22902 leverages the SYM53C896 PCI dual-channel Ultra2 SCSI
controller a single-chip, true multi-function PCI device that connects directly
to a 64-bit PCI bus, presenting one electrical load, while functioning as a single
64-bit PCI DMA bus master.
controller a single-chip, true multi-function PCI device that connects directly
to a 64-bit PCI bus, presenting one electrical load, while functioning as a single
64-bit PCI DMA bus master.
The SYM22902 includes an easy-to-use on-board configuration utility, which
allows the viewing and changing of default configuration settings for the host
adapter and SCSI devices.
allows the viewing and changing of default configuration settings for the host
adapter and SCSI devices.
Description
Figure 2 below shows the major components on the SYM22902 host
adapter board.
adapter board.
SYM53C896
The SYM53C896 dual-channel Ultra2 controller contains the PCI and SCSI
functionality for the SYM22902 host adapter board. The host PCI interface
implements a 64-bit/33 MHz PCI bus. It is backward compatible with 32-bit/33 MHz
buses. Additionally, support is provided for Dual Address Cycle (DAC), PCI power
management, Subsystem Vendor ID and Vital Product Data (VPD). Extended
access cycles (MRL, MRM, MWI) are also supported. The implementation is
PCI 2.2 compliant.
The SYM53C896 dual-channel Ultra2 controller contains the PCI and SCSI
functionality for the SYM22902 host adapter board. The host PCI interface
implements a 64-bit/33 MHz PCI bus. It is backward compatible with 32-bit/33 MHz
buses. Additionally, support is provided for Dual Address Cycle (DAC), PCI power
management, Subsystem Vendor ID and Vital Product Data (VPD). Extended
access cycles (MRL, MRM, MWI) are also supported. The implementation is
PCI 2.2 compliant.
Symbios MiniHAB
Applications
•
Servers, Internet/Intranet, Network,
video, e-mail, printing, database
management
video, e-mail, printing, database
management
•
Workstations, CAD/CAM, industrial
simulation
simulation
•
Host Attach for RAID and JBOD mass
storage subsystems—anywhere data
access is the bottleneck
storage subsystems—anywhere data
access is the bottleneck
PCI Interface
•
64-bit, 33 MHz 3.3 V PCI Interface
•
Maximum burst rate of 264 MBps
•
64-bit addressing (DAC) support
•
PCI 2.2 compliant
•
PCI Power Management 1.1 compliant
•
PC99 Compliant
•
Compliant to PCI Hot Plug electrical
specification
specification
SCSI Interface
•
Two independent Wide Ultra2
SCSI Channels
SCSI Channels
•
Supports up to 80 MBps SCSI per channel
Connectors
•
68-pin high density for internal
connection
connection
•
68-pin VHDCI for external connection
•
Supports fast, Ultra, and Ultra2 SCSI