VMIVME 7750-112 超级VGA控制器

型号：VMIVME 7750-112

超级VGA控制器-高分辨率图形和多媒体质量的视频支持在thcVMIVME-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1.600x1200x256色的屏幕分辨率(单视图模式)。

快闪记忆体-VMIVME 7750-112 提供高达1 GB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1/0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 7750-112提供32 KB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连接的可选的110连接。

有关PMC模块和兼容性的更多信息，请联系VMIC。

通用串行总线(USB)

VMIVME-7750为USB提供了一个前面板双连接集线器主机控制器。支持的USB特性包括:同步数据传输、异步消息传递、外围设备的自识别和配置以及动态(热)连接。

Model: VMIVME 7750-112

Super VGA Controller - High resolution graphics and multimedia quality video supported on the thcVMIVME-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 1.600x1200x256 colors (single view mode).

Flash Memory - The VMIVME 7750-112 provides up to 1 GB 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 1/0 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 7750-112 provides 32 KB 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 110 connection to the VMEbus P2 connection can be provided.

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

Universal Serial Bus (USB)

The VMIVME-7750 provides a front panel dual-connection hub host controller for USB. Supported USB features include synchronous data transfer, asynchronous messaging, self-identification and configuration of peripherals, and dynamic (hot) connectivity.