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Product: IOI-5201U3W

66 Mhz 64-bit PCI 2-Channel Ultra3 Wide SCSI

64-Bit 66Mhz PCI Bus Master
Complies with PCI 2.1 specification
Provide Flash EEPROM, make the SCSI BIOS upgradeable
160MB/s Wide Ultra3 Transfer Rate
Supports SCAM Level 1
Provide Serial EEPROM for SCSI Bus Configuration
Provides ASPI manager for Dos, Windows NT and NetWare.
Support MO in BIOS & Driver for 512, 1024, 2048 and 4096 bytes per sector
Supports  DOS/Windows95/98/Me/NT 4.0/2000, Linux, Solaris, Novell NetWare, SCO Unix, UnixWare, OS/2 (2.X and Warp)
Auto & Active terminator
Internal High density Half pitch 68pin Connector X 2 + IDC 50pin X 1.
External High density Half pitch 68pin Connector X 1.

The IOI-5201U3W is a highly integrated Dual-Channel Wide Ultra160 SCSI to 64-bit 66 MHz PCI host adapter . It is backward compatible with 32-bit/33 MHz buses. Additionally, support for DAC is provided.

The IOI-5201U3W is a true PCI multifunction device in that it presents one electrical load to the PCI bus. It uses one REQ/-GNT/pair to arbitrate for PCI bus mastership, and separate interrupt signals are generated for SCSI Function A and SCSI Function B for maximum performance.

The IOI-5201U3W complies with PCI Power Management Interface Specification Revision 1.1 and PC 99, supporting power states D0, D1, D2, D3hot and D3cold, power management capabilities registers, and program-mable values for PCI Subsystem Vendor ID and Subsystem ID. Extended access cycles (Memory Read Line, Memory Read Multiple, and Memory Write and Invalidate) are also supported.

The IOI-5201U3W also fits into 32-bit PCI slots.  This compatible feature enables users to qualify a single adapter for all server and workstation platforms regardless of the PCI architecture data path size.

The IOI-5201U3W provides two independent Ultra160 SCSI controllers on a single adapter. Each controller supports wide Ultra160 SCSI synchronous transfer rates up to 160 MBps on a LVD SCSI bus. Integrated LVDlink  transceivers support both LVD and single-ended signals with no external transceivers
required. Fast SCSI, Ultra SCSI, Ultra2 SCSI, and Ultra160 SCSI are all supported by the IOI-5201U3W.

IOI-5201U3W delivers maximum I/O throughput for demanding professional applications and high-performance peripherals. It is ideal for high-end Workstation and network servers. It takes full advantage of high-speed PCI Bus and Wide Ultra160 SCSI Bus allowing for multi-user and multitasking performance. 

The Bus Master DMA core is tightly coupled to the SCSI core through the SCRIPTS processor, which supports uninterrupted Scatter/Gather memory operations. The 8 KB of internal RAM per channel for SCRIPTS  instruction storage allow all accesses to remain internal, reducing the time spent on the PCI bus. A 944-byte DMA FIFO on each channel allows the device to efficiently burst up to 512 bytes across the PCI bus. SCSI bus phase mismatches are handled in SCRIPTS, reducing CPU utilization.

The IOI-5201U3W is supported with the proven SDMS software. SDMS software enables the performance enhancements of Ultra160 data transfer speed increases and improved PCI bus utilization capabilities included in the IOI-5201U3W .

The IOI-5201U3W  reliability capabilities of AIP and CRC are enabled and managed by the SDMS software. SDMS software implements the manageability improvements of the LSI Logic SureLINK domain validation technology. SureLINK technology extends standard domain validation with the addition of full cable plant margining. The cable plant margining capability, exclusive to LSI Logicís Ultra160 solution, includes end-to-end margining from the IOI-5201U3W through LSI Logicís LSI53C180 SCSI bus expander to the target device. The domain validation capability of SDMS software is available as an independent application as well as integrated in the DMI 2.0 based system management solution for enterprise class implementations. SDMS software includes BIOS and OSV certified drivers for all major operating systems including DOS with ASPI support, Windows 95/98, Windows NT/2000, UnixWare, OS/2, NetWare, Solaris and Linux. A complete set of SCSI utilities rounds out the software solution, which includes a DMI 2.0 based system management software for Windows NT, NetWare, UnixWare, Solaris and Linux, and a stand-alone or snap-in DMI browser applet and SureLINK applet.

Longer Cables and Better Connectivity
Each Ultra3 SCSI cannel on IOI-5201U3W can support up to 15 devices on a 12 meter long cable.  In a point-to-pint configuration, cabling can be extended up to 25 meters.  Increasing the cable length provides flexibility in system configuration.



  • Integrated LVD link universal transceivers
    - Support Single ended, LVD(Low Voltage Differential)
    - Allow greater device connectivity and longer cable length
    - Support a long-term performance migration path
  • 64-bit, 33/66 MHz PCI interface
    - Theoretical 528 MBps (on 66 MHz part) zero wait state transfer rate
    - 64-bit addressing supported through Dual Address Cycle (DAC)
    - Compliant with PCI 2.2, PCI Power Management 1.1 and PC99
  • Supports Ultra160 SCSI
    - Double transition clocking for 160 MBps throughput on each channel
    - CRC
    - Domain validation  
  • AIP
    - Covers all non-data, including command, status and messages
  • High-performance PCI multifunction device
    - Presents one electrical load to PCI bus
    - Two independent wide Ultra160 SCSI channels 
  • SCSI Interrupt Steering Logic (SISL) alternate interrupt routing for RAID applications
  • Performs Multi-Mode SCSI bus transfers in either Single-Ended or LVD:

    Single-Ended Mode:

    Fast SCSI (8 bit)
    -5 MB/s Asynchronous (10 MB/s with UltraSCSI)
    -10 MB/s Synchronous (20 MB/s with UltraSCSI)
    Fast and Wide SCSI (16 bit)
    -10 MB/s Asynchronous (20 MB/s with UltraSCSI)
    -20 MB/s Synchronous (40 MB/s with UltraSCSI)
    LVD Mode:
    Wide Ultra2 SCSI (16 bit)
     -80 MB/s Synchronous 
    Wide Ultra3 SCSI (16 bit)
  • -160 MB/s Synchronous
  • Provide Flash EEPROM, make the SCSI BIOS upgradeable
  • Supports one External (Wide) and three Internal Connectors (Wide X 2 + Narrow)
  • Full OS Support: 

                  - Windows 95/98/ME, NT 4.0 and 2000
                  - Linux
                  - Solaris
                  - UnixWare
                  - Novell NetWare
                  - OS2

Base on LSI  53C1010 Ultra160 PCI-SCSI I/O processor

HOST Interface
Complies with PCI Local Bus Specification Revision 2.2, and implements a 64-bit/66 MHz PCI bus.

Form Factor
Length: 19.00 cm
Height: 10.00 cm

66 Mhz 64-bit PCI to Dual Channel U3 Wide SCSI Host Adapter
designed with LSI (Symbios) 53C1010



Windows 95/98/ME
Windows 2000/XP
Windows NT 4.0
NetWare 4.2/5.x
Unix Ware
OS/2 Warp 4.x
Solaris 7/8

Manual for
IOI-4203A, IOI-4203U, IOI-9100UW

Manual for
IOI-4204UW, IOI-4206LVD, IOI-5201U3W

Manual for

Note: Manuals are in ZIP or Acrobat (PDF) format.  Click on the WinZip or Acrobat icon below to download available program for your choice.


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