
Features
1-3
The SCSI interface includes these features:
Provides two independent wide Ultra2 SCSI channels
Provides two connectors:
68-pin VHDCI for the external Channel A (LVD/SE)
68-pin high density for the internal Channel B (LVD)
Supports SE and LVD signaling: 16-bit SE or LVD interfaces
Supports LVD/SE termination for external Channel A and LVD
termination for internal Channel B
Supports fast, Ultra, and Ultra2 data transfer capability: Ultra2 SCSI
LVD synchronous transfers are as fast as 80 Mbytes/s
Supports three termination control options:
–
Keep termination always on
–
Use a manual shunt on each channel to disable termination
–
Provide software control using GPIO3 and/or manual shunt to
enable or disable the terminators
Supplies SCSI termination power (TERMPWR) source with
autoresetting circuit breaker
Includes SCSI Plug and Play
Provides flash EEPROM for BIOS storage for each channel
Includes 8 Kbytes internal RAM for SCRIPTS instruction storage for
each channel
Provides a SCSI activity LED connector (J3) for both channels
1.2.3 Board Characteristics
This board provides a low cost Low Profile PCI (LPPCI) solution for
computer manufacturers that require BIOS support for their add-in SCSI
host adapters. The board characteristics are:
PCI board dimensions
Approximately 6.60 x 2.53 inches
Universal 64-bit PCI card edge connector
Low Profile PCI and Standard ISA/EISA bracket