VMIVME7750-734  奔腾I处理器  具有32位寻址

型号：VMIVME7750-734

微处理器--VMIVME7750-734将IntelPentium川处理器带到VME总线上，处理器速度可达1.26GHz。奔腾I处理器具有32位寻址和64位数据总线.它的超标量结构允许每个时钟周期执行三个指令。动态分支预测单元、独立指令和数据缓存以及MMXTM技术也提高了处理器的性能。奔腾I处理器还提供256千字节(1.26千兆赫有512千字节)的先进传输缓存(在模，全速二级缓存)使用双独立总线结构，高带宽和性能。这种L2高速缓存与处理器的时钟频率相同，从而提高了性能。

DRAM内存-VMIVME7750-734接受一个144针SDRAM SODIMM的最大内存容量为512兆字节。板载DRAM双端口到VMEbus。

BIOS-系统和视频BIOS在可重新编程的闪存中提供

超级VGA控制器-高分辨率图形和多媒体质量的视频支持在VMIVME-7750的内置815E芯片组AGP图形适配器。该适配器是补充4兆字节的外部同步DRAM高速缓存与高带宽的64位数据接口。图形适配器支持高达1,600x1,200x256色的屏幕分辨率(单视图模式).

快闪记忆体-VMIVME7750-734提供高达1GB的IDECompactFlash记忆体访问通过辅助IDE端口。VMIVME-7750BIOS包含允许板卡从闪存引导的选项。

计时器-VMIVME-7750为用户提供了两个16位定时器和两个32位计时器(除了系统定时器)。这些定时器映射在I/0空间，并且完全是软件可编程的。

看门狗定时器VMIVME-7750提供了一个软件可编程看门狗定时器。看门狗定时器在软件控制下启用。一旦看门狗定时器被启用，板载软件必须在指定的定时器周期内访问定时器，否则将发生超时。用户跳线允许超时导致重置独立于跳线，软件可以使看门狗超时导致一个非屏蔽中断(NMI)或VME总线SYSFAIL。

非易失性SRAM-VMIVME-7750提供32KB的非易失性SRAM。当+5 V电源中断或从单元中移除时，SRAM的内容将被保留。

PMC扩展站点-VMIVME-7750支持IEEEP1386通用夹层卡规范和5VPCI夹层卡扩展站点。PMC站点提供VMEbus前面板外的标准1/0。可以提供到VMEbus P2连接的可选1/0连接。

有关PMC模块和兼容性的更多信息，请联系VMIC。

Model: VMIVME7750-734

Microprocessor - The VMIVME7750-734 brings the IntelPentium stream processor to the VME bus with processor speeds up to 1.26GHz. The Pentium I processor has 32-bit addressing and a 64-bit data bus. Its superscalar structure allows three instructions to be executed per clock cycle. Dynamic branch prediction units, independent instruction and data caches, and MMXTM technology also improve processor performance. The Pentium I processor also offers 256 kilobytes (1.26 GHZ with 512 kilobytes) of advanced transfer cache (in mode, full speed secondary cache) using dual independent bus architecture, high bandwidth and performance. This L2 cache is at the same clock rate as the processor, which improves performance

DRAM Memory - The VMIVME7750-734 accepts a 144-pin SDRAM SODIMM with a maximum memory capacity of 512 megabytes. Onboard DRAM dual port to VMEbus.

BIOS- The system and video BIOS are provided in reprogrammable flash memory

Super VGA Controller - High resolution graphics and multimedia quality video supported on the VMIVME-7750's built-in 815E chipset AGP graphics adapter. The adapter is complemented by a 4-megabyte external synchronous DRAM cache with a high-bandwidth 64-bit data interface. The graphics adapter supports screen resolutions of up to 1,600x1,200x256 colors (single view mode).

Flash Memory -VMIVME7750-734 provides up to 1GB of IDecompact Flash memory access via a secondary IDE port. The VMIVME-7750BIOS includes the option to allow the board to boot from flash memory.

Timer - The VMIVME-7750 provides users with two 16-bit timers and two 32-bit timers (in addition to the system timer). These timers map in the I/0 space and are completely software programmable.

Watchdog Timer VMIVME-7750 provides a software programmable watchdog timer. The watchdog timer is enabled under software control. Once the watchdog timer is enabled, the onboard software must access the timer within the specified timer period, otherwise a timeout will occur. User jumpers allow timeouts to cause resets independent of the jumpers, and software can cause watchdog timeouts to cause an unmasked interrupt (NMI) or VME bus SYSFAIL.

Non-volatile SRAM- The VMIVME-7750 offers 32KB of non-volatile SRAM. When the +5 V power supply is interrupted or removed from the unit, the contents of the SRAM are retained.

PMC Extension Site - The VMIVME-7750 supports the IEEEP1386 Universal Sandwich card specification and the 5VPCI Sandwich Card extension site. The PMC site offers standard 1/0 outside the VMEbus front panel. An optional 1/0 connection to the VMEbus P2 connection can be provided.

For more information about PMC modules and compatibility, please contact VMIC.