3.1.2 LSIU320 and LSI20320A Single Channel Host Adapters

The LSIU320 and LSI20320A series of host adapters are single channel Ultra320 SCSI host adapters that provide one Ultra320 SCSI channel. The SCSI Channel A interface for is made through connectors J2 and J3.

Features of the LSIU320 and LSI20320A series of host adapters are:

•single Ultra320 SCSI channel

•two SCSI connectors

–one external 68-pin HD connector

–one internal 68-pin HD connector

•LVD/SE termination

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

•Fusion-MPT architecture

Details of the LSIU320 and LSI20320A series of host adapters are:

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

•J2: 68-pin HD right-angle internal connector

•J3: 68-pin HD right-angle internal connector

•J4: 4-pin low density unshrouded right-angle LED connector

•Subsystem Vendor ID and Subsystem IDs are:

Host Adapter

Chip

Subsystem Vendor ID

Subsystem ID

 

 

 

 

LSIU320

1020A

0x1000

5100

 

 

 

 

LSIU320-R

1020A

0x1000

5100

 

 

 

 

LSI20320A

1020A

0x1000

5100

 

 

 

 

LSI20320A-R

1020A

0x1000

5100

 

 

 

 

During system initialization, the system loads the ID numbers into the

Subsystem Vendor ID and Subsystem ID registers of the embedded

SCSI controller.

Figure 3.2 illustrates the LSIU320 and LSI20320A series of host adapters.

3-4

Ultra320 SCSI Host Adapter Characteristics

Version 2.2

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