3.1.4 LSI22320 Dual Channel Host Adapters

The LSI22320 series of host adapters are dual channel Ultra320 SCSI 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 and Figure 3.5 for details.

Features of the LSI22320 series of host adapters are:

•two independent Ultra320 SCSI channels

•four SCSI connectors:

–two external 68-pin VHDCI connectors

–two internal 68-pin HD connectors

•LVD/SE termination

•Integrated RAID (IR) solution applies to the ‘‘R’’ cards only

•Fusion-MPT architecture

Details of the LSI22320 series of host adapters are:

•J1: PCI and PCI-X, 64-bit, universal type board edge connector

•J2 and J3: 68-pin VHDCI right-angle external connectors

•J4 and J6: 68-pin HD right-angle internal connectors

•J5: 4-pin low density unshrouded right-angle LED connector

•Subsystem Vendor ID and Subsystem IDs are:

Host Adapter

Chip

Subsystem Vendor ID

Subsystem ID

 

 

 

 

LSI22320

1030

0x1000

1010

 

 

 

 

LSI22320-R

1030

0x1000

30B0

 

 

 

 

LSI22320T

1030T

0x1000

1110

 

 

 

 

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 series of host adapter, and Figure 3.5 illustrates the LSI22320T host adapter.

3-8

Ultra320 SCSI Host Adapter Characteristics

Version 2.2

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