Lsi22320 Dual Channel Host Adapters - LSI 320 User Manual

3.1.3 LSI22320 Dual Channel Host Adapters

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The LSI Logic LSI22320 and LSI22320-R are dual channel Ultra320
SCSI to PCI-X host adapters that provide two Ultra320 SCSI Channels.
The SCSI Channel A interface is made through connectors J2 and J6.
The SCSI Channel B interface is made through connectors J3 and J4.
See Figure 3.4 for details.
Features of the LSI22320 and LSI22320-R host adapters are:
Two independent Ultra320 SCSI channels
Four SCSI connectors:
– Two external 68-pin very high density cable interconnect (VHDCI)
connectors
– Two internal 68-pin high density connectors
LVD/SE termination
LSI Logic Integrated Mirroring (IM) technology for boot volume and
operating system protection (IM is for the LSI22320-R only)
Fusion-MPT architecture
Details of the LSI22320 and LSI22320-R host adapters are:
J1: PCI and PCI-X, 64-bit, universal type board edge connector
J2 and J3: 68-pin very high density cable interconnect right-angle
external connectors
J4 and J6: 68-pin high density right-angle internal connectors
J5: 4-pin low density un-shrouded right-angle LED connector
Subsystem Vendor ID: 0x1000
Subsystem ID: 0x1010
During system initialization, the system loads the ID numbers into the
Subsystem Vendor ID and Subsystem ID registers of the embedded
SCSI controller.
Figure 3.4 illustrates the LSI22320 or LSI22320-R host adapter board.
Ultra320 SCSI Host Adapter Board Characteristics
Rev. 2.0 Copyright © 2002 by LSI Logic Corporation. All rights reserved.