MVME61006E-0163 MOTOROLA MVME6100系列 VMEbus单板计算机(SBC)

VMEbus 2eSST性能
MVME6100系列是首款采用Tundra Tsi148™VMEbus接口芯片设计的VMEbus单板计算机(SBC)，提供2eSST VMEbus性能。2eSST(两个边缘源同步传输)协议使VMEbus在大多数情况下以320MB/s的实际带宽运行。2eSST协议已经存在了一段时间(试用标准草案于1999年发布，并于2003年作为ANSI标准发布)，但直到现在，2eSST板将无法在标准VMEbus背板上工作，因为现有的VMEbus收发器无法支持所需的VMEbus 2eSST信令速度。德州仪器公司开发了新的VMEbus收发器，支持2eSST协议要求的VMEbus信号交换速度。新的德州仪器VMEbus收发器和Tsi148 VMEbus传统协议支持的组合允许客户将MVME6100系列集成到现有的基础设施中，提供向后兼容性，从而节省了他们在现有VMEbus板，背板，机箱和软件上的投资。
平衡性能
MVME6100系列提供的不仅仅是更快的VMEbus传输速率;它从处理器、内存子系统、本地总线和I/O子系统提供均衡的性能。运行速度为1.267 GHz的处理器是数据密集型应用的理想选择。最先进的主机桥接，支持133 MHz主机总线和133 MHz DDR内存总线，与处理器很好地匹配。为了确保MVME6100系列能够处理2eSST的320MB/s数据速率，Tsi148 VMEbus接口芯片连接到主机桥上的133 MHz PCI-X总线之一。第二个PCI- x总线有两个PMC- x站点，每个站点支持PMC或PMC- x卡，支持PCI总线速度从33到100 MHz。MVME6100还提供双千兆以太网接口。所有这些构成了一组平衡良好的高性能子系统，具有无与伦比的性能。

MVME6100-0161

VMEbus 2eSST Performance
The MVME6100 series is the first VMEbus single-board computer (SBC) designed with the Tundra Tsi148™ VMEbus interface chip offering 2eSST VMEbus performance. The 2eSST (two edge source synchronous transfer) protocol causes the VMEbus to run at a practical bandwidth of 320MB/s in most cases. The 2eSST protocol has existed for some time (the draft standard for trial use was published in 1999 and released as an ANSI standard in 2003), but until now, 2eSST boards would not work in a standard VMEbus backplane because the existing VMEbus transceivers could not support the required VMEbus 2eSST signaling speeds. Texas Instruments has developed new VMEbus transceivers that support the VMEbus signal switching speeds required by the 2eSST protocol. The combination of the new Texas Instruments VMEbus transceivers and the Tsi148 VMEbus legacy protocol support allows customers to integrate the MVME6100 series into their existing infrastructure providing backward compatibility and thereby preserving their investment in existing VMEbus boards, backplanes, chassis and software.
Balanced Performance
The MVME6100 series provides more than just faster VMEbus transfer rates; it provides balanced performance from the processor, memory subsystem, local buses and I/O subsystems. The processor running at speeds of 1.267 GHz is ideal for data-intensive applications. The state-of-the-art host bridge, with support for a 133 MHz host bus and a 133 MHz DDR memory bus, is well matched to the processor. To ensure that the MVME6100 series can handle the 320MB/s data rates of 2eSST, the Tsi148 VMEbus interface chip is connected to one of the 133 MHz PCI-X buses on the host bridge. The second PCI-X bus has dual PMC-X sites—each site supports PMC or PMC-X cards supporting PCI bus speeds from 33 to 100 MHz. The MVME6100 also offers dual Gigabit Ethernet interfaces. All of this adds up to a set of well-balanced, high-performance subsystems for unparalleled performance.