K-WANG
GE VMIVME-7805 Single Board Computer
GE VMIVME-7805 Single Board Computer
DESCRIPTION
The VMIVME-7805 brings the Intel Pentium 4 Processor - M to VME, offering processor speeds up to 2.2 GHz. The Intel Pentium 4 Processor - M is the first Intel mobile processor with the Intel NetBurst™ microarchitecture. The Intel Pentium 4 Processor - M utilizes a 478-pin, Micro Flip-Chip Pin Grid Array (Micro-FCPGA) package, and plugs into a surfacemount, Zero Insertion Force (ZIF) socket. The Intel Pentium 4 Processor - M maintains full compatibility with IA32 software.
The Intel NetBurst microarchitecture features include hyperpipelined technology, a rapid execution engine, a 400 MHz system bus, and an execution trace cache. The hyper-pipelined technology doubles the pipeline depth in the Intel Pentium 4 Processor - M allowing the processor to reach much higher core frequencies. The rapid execution engine allows the two integer ALUs in the processor to run at twice the core frequency, which allows many integer instructions to execute in 1/2 clock tick. The 400 MHz system bus is a quad-pumped bus running off a 100 MHz system clock, making 3.2 Gbyte/s data transfer rates possible. The execution trace cache is a first level cache that stores approximately 12 Kbyte decoded micro-operations, which removes the instruction decoding logic from the main execution path, thereby increasing performance.
Digital Visual Interface (DVI):
The VMIVME-7805 has a digital visual interface that provides a high speed digital connection for visual data types that are display technology independent. DVI is a display interface developed in response to the proliferation of digital flat-panel displays. For the most part, these displays are currently connected to an analog video graphics array (VGA) interface and, thus, require a double conversion. The digital signal from the computer must be converted to an analog signal for the analog VGA interface, then converted back to a digital signal for processing by the flat-panel display. This inherently inefficient process takes a toll on performance and video quality and adds cost. In contrast, when a flat-panel display is connected to a digital interface, no digital-to-analog conversion is required.
DVI Connectors:
The digital DVI connector has 24 pins that can accommodate up to two TMDS links and the VESA DDC and EDID services. The DVI specification defines two types of connectors:
• DVI-Digital (DVI-D) supports digital displays only (not supported)
• DVI-Integrated (DVI-I) supports digital displays and is backward compatible with analog displays (used on the VMIVME-7805)
Ethernet Controller:
The VMIVME-7805 supports Ethernet LANs with two Intel Ethernet controllers (one 82540EM Gigabit Ethernet controller and the other internal to Intel’s chipset ICH4-M). 10BaseT, 100BaseTX and Gigabit Ethernet options are supported via one RJ45 connector. 10BaseT and 100BaseTX are supported via a second RJ45 connector. Remote LAN booting is supported.
Remote Ethernet Booting:
The VMIVME-7805 utilizes a ROM BIOS that provides the ability to remotely boot the VMIVME-7805 using NetWare, TCP/IP or RPL network protocols.
Remote Ethernet Features:
• NetWare, TCP/IP, RPL network protocol support
• Unparalleled boot sector virus protection
• Detailed boot configuration screens
• Comprehensive diagnostics
• Optional disabling of local boots
• Dual-boot option lets users select network or local booting
Flash Memory:
The VMIVME-7805 provides up to 1 Gbyte of IDE CompactFlash memory accessible through the secondary IDE port. The VMIVME-7805 BIOS includes an option to allow the board to boot from the Flash memory.
Watchdog Timer:
The VMIVME-7805 provides a software-programmable watchdog timer. The watchdog timer is enabled under software control. Once the watchdog timer is enabled, software must access the timer within the specified timer period or a timeout will occur. A user configurable jumper allows the timeout to cause a reset. Independent of the jumper, software can enable the watchdog timer to cause a nonmaskable interrupt (NMI) or a VMEbus SYSFAIL.
IDE Interface:
The IDE interface on the VMIVME-7805 supports ATA-33, ATA-66 and ATA-100 drives and automatically determines the proper operating mode based on the type of drive used. In order to properly function in the ATA-100 mode, a special 80 conductor cable must be used instead of the standard 40 conductor cable. This cable is typically available from the ATA-100 drive manufacturer.
Environmental Specifications
Temperature: Operating: 0 to +50° C (Air flow requirement as measured at outside of he greater than 350 LFM)
Storage: -25 to+80° C
Relative Humidity: 10% to 90%, noncondensing
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