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1-4 Using the LSIU160
• Supports SCRIPTS:
– Includes 8 Kbytes RAM for SCRIPTS instruction storage
– Supports multithreaded I/O algorithms in SCSI SCRIPTS with
fast I/O context switching
– Handles phase mismatches in SCRIPTS without interrupting the
system processor
– Supports Load/Store SCRIPTS instructions without use of PCI
cycles
• Supports 31 levels of SCSI synchronous offset in the Single
Transition (ST) mode and 62 levels in the DT mode
• Performs sustained memory-to-memory DMA transfers to
approximately 100 Mbytes/s
• Performs complex bus sequences without interrupts, including
restoring data pointers
• Supports target disconnect and later reconnect with no interrupt to
the system processor
• Contains a serial EEPROM for user configuration utility
• Provides SCSI bus activity LED connector
1.2.3 Board Characteristics
The LSIU160 board characteristics are:
• PCI board dimensions,
174.6 x 101.6 mm (6.875 x 4.0 inches)
• PCI Universal 64-bit card edge connector
• HD 68-pin external connector
• HD 68-pin internal connector
A mechanical drawing showing board dimensions and component layout
is located in Appendix A, “Technical Specifications.”