QLogic Corporation
ISP2300 Intelligent Fibre Channel Processor
2-Gigabit Fibre Channel to 66-MHz PCI
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Supports external frame buffering for performance
scalability over long distances (up to 100 km)
Supports JTAG boundary scan and full scan
Features
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66-MHz, 64-bit PCI host bus interface
Backward compatible to standard 33-MHz PCI
Compliance with PCI Local Bus Specification
revision 2.2
Product Description
The ISP2300 is a single-chip, highly integrated, bus
master, Fibre Channel processor that targets storage,
clustering,andnetworkingapplications.Thischipconnects
a conventional PCI bus to a 2-gigabit Fibre Channel loop
or to a point-to-point Fibre Channel port.
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Supports Fibre Channel-arbitrated loop (FC-AL),
FC-AL-2, point-to-point, and switched fabric
topologies
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Supports full-duplex communications in all Fibre
Channel topologies
Compliance with ANSI SCSI standards for class 1,
class 2, class 3, and intermix Fibre Channel service:
The ISP2300 is a fully autonomous device, capable of
managing multiple I/O operations and associated data
transfers from start to finish without host intervention.
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Fibre Channel-Arbitrated Loop (FC-AL-2)
The ISP2300 balances the advanced bus speeds and
efficiency of PCI with exceptional 2-gigabit Fibre Channel
performance. Fibre Channel support for SCSI, IP, and VI
allows the ISP2300 to target a wide spectrum of storage
and system area networks (SANs). The ISP2300 block
diagram is illustrated in figure 1.
working draft, rev 6.4, August 28, 1998
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Fibre Channel-Fabric Loop Attachment
(FC-FLA) working draft, rev 2.7, August 12,
1997
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FibreChannel-PrivateLoopSCSIDirectAttach
(FC-PLDA) working draft, rev 2.1,
September 22, 1997
ISP Initiator/Target SCSI, IP, and VI
Firmware
Fibre Channel-Tape (FC-TAPE) profile,
The ISP2300 firmware implements a multitasking host
adapter that provides the host system with IP
T11/98-124vD, rev 1.13, February 3, 1999
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Supports Fibre Channel protocol-SCSI
(FCP-SCSI), Fibre Channel Internet Protocol (IP),
and Fibre Channel-virtual interface (FC-VI)
protocol
Compliance with PCI Bus Power Management
Interface Specification Revision 1.1 (PC99)
Supports up to 400 Mbytes/sec sustained Fibre
Channel data transfer rate
Supports SCSI initiator, initiator/target, and target
modes
Onboard, enhanced RISC processor
Onboard 2-gigabit serial transceivers
Automatically negotiates the Fibre Channel bit rate
(1 or 2 gigabits)
communications, complete SCSI command and data
transportcapabilities,andVIcommunications,thusfreeing
the host system from simultaneous execution of SCSI, IP,
and VI traffic. The firmware provides two interfaces to the
host system: the command interface and the Fibre Channel
transport interface. The single-threaded command
interface facilitates debugging, configuration, and error
recovery. The multithreaded transport interface maximizes
use of the Fibre Channel and host buses.
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The ISP2300 can operate simultaneously in SCSI
initiator and target modes, and supports SCSI, IP, and VI
protocols concurrently.
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Software Drivers
The ISP2300 supports a host software interface similar
to the QLogic parallel SCSI and 1-gigabit Fibre Channel
processor families. Existing ISP2100A/2200A software
drivers for all major operating systems are easily modified
to support the ISP2300. The ISP2300 also supports
FCP-SCSI, IP, and VI software drivers for most major
operating systems.
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Supports PCI dual-address cycle and cache
commands
No host intervention required to execute complete
SCSI, IP, or VI operations
Supports multi-ID aliasing in target mode
83230-580-00 C
ISP2300
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