3.1.1 LSI20320 Single Channel Host Adapters
The LSI20320, LSI20320-R, LSI20320L and LSI20320H are single channel Ultra320 SCSI to PCI-X host adapters that provide one Ultra320 SCSI channel. The SCSI Channel A interface for the LSI20320, LSI20320-R and LSI20320L is made through connectors J1 and J3. See Figure 3.1 for details. The SCSI Channel A interface for the LSI20320H is made through connectors J2 and J4. See Figure 3.2 for details.
Features of the LSI20320 series of host adapters are
•single Ultra320 SCSI channel
•two SCSI connectors
–one external 68-pin very high density cable interconnect (VHDCI) connection for LSI20320, LSI20320-R, and LSI20320L
–one external 68-pin high density connector for LSI20320H
–one internal 68-pin high density connector for all boards
•PCI low profile bracket (LSI20320L only)
•LVD/SE termination
•LSI Logic Integrated Mirroring™ (IM) technology for boot volume and operating system protection (IM is for the LSI20320-R only)
•Fusion-MPT architecture
Details of the LSI20320, LSI20320-R, and LSI20320L host adapters are
•J5: PCI and PCI-X, 64-bit, universal type board edge connector
•J1: 68-pin very high density cable interconnect shielded right-angle external connector
•J3: 68-pin high density right-angle internal connector
•HDR2: 4-pin low density un-shrouded right-angle LED connector
•Subsystem Vendor ID: 0x1000
•Subsystem ID: 0x1060
During system initialization, the system loads the ID numbers into the Subsystem Vendor ID and Subsystem ID registers of the embedded SCSI controller.
3-2 | Ultra320 SCSI Host Adapter Characteristics |