LSI 53C810A - Manual (Page 15)

LSI53C810A Benefits Summary 1-3
1.2 LSI53C810A Benefits Summary
This section provides an overview of the LSI53C810A features and
benefits. It contains these topics:
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SCSI Performance
•
PCI Performance
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Integration
•
Ease of Use
•
Flexibility
•
Reliability
•
Testability
1.2.1 SCSI Performance
To improve SCSI performance, the LSI53C810A:
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Complies with PCI 2.1 specification
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Supports variable block size and scatter/gather data transfers
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Minimizes SCSI I/O start latency
•
Performs complex bus sequences without interrupts, including
restore data pointers
•
Reduces Interrupt Service Routine (ISR) overhead through a unique
interrupt status reporting method
•
Performs fast SCSI bus transfers in SE mode
– up to 7 Mbytes/s asynchronous
– 10 Mbytes/s synchronous
•
Increases performance of data transfers to and from the chip
registers with new load and store SCRIPTS instruction
•
Supports target disconnect and later reselect with no interrupt to the
system processor
•
Supports execution of multithreaded I/O algorithms in SCSI
SCRIPTS with fast I/O context switching