1-8
Introduction
–
LVDlink transceivers save the cost of external differential
transceivers.
–
Supports a long-term performance migration path.
•
Bursts of up to 512 bytes across the PCI bus with an independent
896–920 byte FIFO.
•
Handles phase mismatches in SCRIPTS without interrupting the
system processor.
•
Includes an on-chip SCSI clock quadrupler that allows the chip to
achieve Ultra160 SCSI transfer rates with an input frequency of
40 MHz.
•
Includes 8 Kbytes of internal RAM for SCRIPTS instruction storage.
•
Supports 31 levels of SCSI synchronous offset in the Single
Transition (ST) mode and 62 levels in the DT mode.
•
Supports variable block size and scatter/gather data transfers.
•
Performs sustained Memory-to-Memory DMA transfers to
approximately 100 Mbytes/s.
•
Minimizes the SCSI I/O start latency.
•
Performs complex bus sequences without interrupts, including
restoring data pointers.
•
Reduces ISR overhead through a unique interrupt status reporting
method.
•
Includes RAID Ready SCSI on the motherboard with a separate
interrupt for routing to a RAID adapter.
•
Supports Load/Store SCRIPTS instructions to increase the
performance of data transfers to and from the chip registers without
using PCI cycles.
•
Includes SCRIPTS support of 64-bit addressing.
•
Supports target disconnect and later reconnect with no interrupt to
the system processor.
•
Supports multithreaded I/O algorithms in SCSI SCRIPTS with fast
I/O context switching.
•
Supports expanded Register Move instructions to support additional
arithmetic capability.
Содержание LSI53C1000
Страница 6: ...vi Preface...
Страница 16: ...xvi Contents...
Страница 28: ...1 12 Introduction...
Страница 234: ...4 124 Registers...
Страница 314: ...6 40 Specifications This page intentionally left blank...
Страница 318: ...6 44 Specifications This page intentionally left blank...
Страница 344: ...6 70 Specifications This page intentionally left blank...
Страница 350: ...6 76 Specifications Figure 6 42 LSI53C1000 329 Ball Grid Array Bottom view...
Страница 352: ...6 78 Specifications...
Страница 360: ...A 8 Register Summary...
Страница 376: ...IX 12 Index...