3 Interface Devices and Mass-Storage Drives

SCSI / LAN Combo Board

External (8-bit) SCSI connector

By default, the internal SCSI bus is configured to run in Ultra-SCSI mode (providing a maximum band-width of 40 MB/s. The user may configure the SCSI system using the SCSI Configuration Utility, included in the system BIOS. This utility is described in more detail on page 77.

SCSI-configured-automatically (SCAM) support is provided at level 2, for Plug and Play. However, hot swap is not supported. The controller is BBS compliant.

The Ultra narrow 8-bit SCSI connector uses addresses ranging from 0 to 7. As with the 16-bit internal SCSI connector, the SCSI address 0 is used by the first SCSI hard disk drive and SCSI address 7 is reserved for the integrated SCSI controller (the default for wide and narrow SCSI devices).

SCSI / PCI LAN Combo Board Features

Interface

Features

 

 

PCI Interface

Full 32-bit DMA bus master.

 

 

 

Zero wait-state bus master data bursts.

 

 

 

Universal PCI bus voltage support.

 

 

SCSI Interface

16-bit single ended.

 

 

 

Automatically enabled active termination

 

 

 

Fast and Ultra SCSI data transfer capability.

 

 

 

SCSI TERMPWR source with auto-resetting circuit breaker

 

 

 

SCAM (SCSI Configured AutoMatically).

 

 

 

Serial NVRAM (Non-Volatile RAM) for configuration utility and SCAM.

 

 

 

Flash BIOS.

 

 

 

Fast and Ultra SCSI controlled by external SCSI cable detection.

 

Ultra speed requires 1.5m maximum SCSI bus.

 

 

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