HP XA manual External 8-bit Scsi connector, Scsi / PCI LAN Combo Board Features, Scsi Interface

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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