VMIVME-7740-850 350-007740-850应用处理器单板VMIC系列生命周期长

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VMIVME-7740-850 350-007740-850应用处理器单板VMIC系列生命周期长
VMIC的VMIVME-7740是一款基于奔腾III处理器的计算机单一Eurocard结构的额外好处以及与VMEbus规范第C.1版。VMIVME-7740，具有***VMEbus接口以及双端口到VMEbus的RAM，是多处理器应用程序的理想选择。单个CPU板用作标准PC/AT，执行PC/AT类型开机自检，然后启动MS-DOS、Windows 95、Windows NT或任何其他兼容PC的操作系统。VMIVME-7740的标准PC功能包VMIVME-7740也作为VME总线控制器运行，并与其他VMEbus模块通过板载PCI到VMEbus桥和Endian转换硬件VMIVME-7740可以作为VMEbus从板进行访问。VME总线功能可通过编程VMIVME-7740的PCI到VMEbus桥接器获得本卷和/或于可选PCI到VMEbus接口板，标题为：VMIVME-7740 Tundra Universe™-基于VMEbus接口产品手册（文件编号500-007740-001）。VMIVME-7740编程器可以快速轻松地控制所有VME总线只需链接到VMEbus中断和控制函数库即可实现功能。此库可与VMIC的VMISFT-9420 IOWorks Access软件一起使用，用于

Windows NT用户。VMIVME-7740还提供了超出典型PC/AT兼容SBC，包括通用定时器、可编程看门狗定时器，一个可引导的闪存磁盘系统，和非易失性SRAM。这些功能使该单元成为嵌入式应用程序的理想选择。

产品详情

VMIVME-7740-850 350-007740-850应用处理器单板VMIC系列生命周期长

该产品将基于英特尔的PC和基于摩托罗拉的VMEbus控制器；因此，对“常规”的一些混淆可能存在符号和术语。通过遵守摩托罗拉/VMEbus世界的典型惯例而保持一致；然而，两个阵营的用户都应该查看以下注意事项：十六进制数字为摩托罗拉风格，前缀为美元符号：例如，79美元。相比之下，这个相同的数字表示为0F79H根据英特尔惯例，或许多程序员的0xF79。较少的常见的形式有F79h或数学家的F7916。•8位的量被称为“字节”，16位的量称为“字”32位的量被称为“长字”。英特尔的约定类似，尽管它们的32位数量通常被称为“双字”•摩托罗拉程序员应注意，英特尔处理器有一条I/O总线完全独立于存储器总线。在通过参考I/O中的寄存器和逻辑实体来阐明这一点的手册通过在I/O地址前面加上前缀来填充空间。因此，“I/O$140”的寄存器不是与“$140”的寄存器相同，因为后者在内存总线上，而前者在I/O总线上。•英特尔程序员应注意，本手册中使用线性的“平面记忆”模型，而不是旧的分段：偏移模型与Intel Real Mode编程相关。

The VMIVME-7740 performs all the functions of a standard IBM PC/AT motherboard with the following features: • Single-slot VMEbus 6U size • Includes a high-performance Intel Pentium III processor • Up to 512 Mbyte of Synchronous DRAM • 64-bit AGP SVGA video graphics accelerator - 4 Mbyte SGRAM Video Memory - Resolutions up to 1600x1200x56k colors • Battery-backed clock/calendar • Front panel reset switch and miniature speaker • On-board port for a keyboard and mouse, Ultra-IDE hard drive, floppy drive, dual Ethernet, video, dual serial, and USB • Front panel “vital sign” indicators (power, Ultra-IDE hard drive activity, VMEbus SYSFAIL, and Ethernet status) • Three general-purpose programmable 16-bit timers • Software-controlled Watchdog Timer • Up to 192 Mbyte of bootable flash on secondary IDE • 32 Kbyte of non-volatile SRAM • PMC.The VMIVME-7740 supports standard PC/AT I/O features such as those listed in Table 1-1. Figure 1-1 on page 25 shows a block diagram of the VMIVME-7740 emphasizing the I/O features including the PCI-to-VMEbus bridge.In addition to its PC/AT functions, the VMIVME-7740 has the following VMEbus features: • Single-slot, 6U height VMEbus board • Complete six-line Address Modifier (AM-Code) programmability • VME data interface with separate hardware byte/word swapping for master and slave accesses • Support for VME64 multiplexed MBLT 64-bit VMEbus block transfers • User-configured interrupter • User-configured interrupt handler • System Controller mode with programmable VMEbus arbiter (PRI, SGL, and RRS modes are supported) • VMEbus BERR bus error timer (software programmable) • Slave access from the VMEbus to local RAM and mailbox registers • Full-featured programmable VMEbus requester (ROR, RWD, and BCAP modes are supported) • System Controller autodetection • Complete VMEbus master access through five separate Protected-mode memory windows Figure 1-2 illustrates the VMIVME-7740 functions in a typical VMEbus system. The VMIVME-7740 is a versatile single-board solution for VMEbus control with familiar PC/AT operation. The VMIVME-7740 VMEbus interface is provided by the PCI-to-VMEbus bridge built around the Tundra Semiconductor Corporation Universe II VMEbus interface chip. The Universe II provides a reliable high-performance 64-bit VMEbus-to-PCI interface in one design. The functions and programming of the Universe-based VMEbus interface are addressed in detail in a separate associated manual titled: VMIVME-7740 Tundra Universe II Based VMEbus Interface Product Manual (500-657740-001).

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