VMIVME-7750-112 VME Single Board Computer

The VMIVME-7750 brings the Intel Pentium III processor to VME, offering processor speeds up to 1.26 GHz. The
Pentium III processor has 32-bit addressing and a 64-bit data bus. Its superscalar architecture allows three instructions to be
executed per clock cycle. A dynamic branch prediction unit, separate instruction and data caches, and MMX™ technology
also increase the processor’s performance. The Pentium III processor also provides 256 Kbyte (1.26 GHz has 512 Kbyte) of
advanced transfer cache (on-die, full speed level 2 cache) using dual independent bus architecture for high bandwidth and
performance. This L2 cache operates at the same clock frequency as the processor, thus improving performance.

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VMIVME-7750-112 VME Single Board Computer

The VMIVME-7750 brings the Intel Pentium III processor to VME, offering processor speeds up to 1.26 GHz. The
Pentium III processor has 32-bit addressing and a 64-bit data bus. Its superscalar architecture allows three instructions to be
executed per clock cycle. A dynamic branch prediction unit, separate instruction and data caches, and MMX™ technology
also increase the processor’s performance. The Pentium III processor also provides 256 Kbyte (1.26 GHz has 512 Kbyte) of
advanced transfer cache (on-die, full speed level 2 cache) using dual independent bus architecture for high bandwidth and
performance. This L2 cache operates at the same clock frequency as the processor, thus improving performance.

Ethernet Controller: The VMIVME-7750 supports Ethernet LANs with two Intel Ethernet controllers (one 82559 and the other
internal to Intel’s chipset ICH2). 10BaseT and 100BaseTX options are supported via two RJ45 connectors. Remote LAN booting is
supported.
Remote Ethernet Booting: The VMIVME-7750 utilizes Lanworks Technologies, Inc.’s BootWare®. BootWare provides the ability to
remotely boot the VMIVME-7750 using NetWare, TCP/IP, or RPL network protocols.
BootWare Features:
• NetWare, TCP/IP, RPL network protocol support
• Unparalleled boot sector virus protection
• Detailed boot configuration screens

VMIVME-7750-740000

The system controller provides a SYSCLK driver, IACK* daisychain driver, and a VMEbus access timeout timer. The system
controller also provides an arbitration timeout if BBSY* is not seen within a specified period after a BGOUT* signal is issued.
This period is programmable for 16 or 256 µs.
VMEbus Requester: The microprocessor can request and gain control of the bus using any of the VMEbus request lines (BR3*
to BR0*) under software control. The requester can be programmed to operate in any of the following modes:
Release-On-Request (ROR)
Release-When-Done (RWD)
VMEbus Capture and Hold (BCAP)
Mailboxes: The VMEbus interface provides four 32-bit
mailboxes, which are accessible from both the microprocessor and the VMEbus providing interprocessor communication. The
mailboxes have the ability to interrupt the microprocessor when accessed by VMEbus.

 

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