EMERSON KJ3001X1-CA1渦流傳感器前置器
USB主機控制器通過處理和調度數(shù)據(jù)結構在系統(tǒng)存儲器和USB之間移動數(shù)據(jù)?？刂破鲌?zhí)行計劃列表，并向系統(tǒng)報告狀態(tài)。注意：VMIVME-7750的默認CMOS設置禁用USB功能。這為實時系統(tǒng)提供了更多的中斷和更少的中斷延遲。如果啟用了USB，用戶必須知道中斷共享和延遲將受到影響。VMIC的VMIVME-7750具有超出典型臺式計算機系統(tǒng)的其他功能。該單元提供四個軟件控制的通用計時器以及一個可編程看門狗計時器，用于同步和控制嵌入式應用程序中的多個事件。VMIVME-7750還提供了可啟動的閃存系統(tǒng)和32 KB的非易失性SRAM。此外，VMIVME-7750支持嵌入式智能VME網橋，以允許與最苛刻的VME應用程序兼容。這些特性使該裝置成為嵌入式應用的理想選擇，特別是在無法使用標準硬盤驅動器和軟盤驅動器的情況下。VMIVME-7750還通過集成這些功能的專用電路來支持I2C。
The USB Host Controller moves data between system memory and the USB by
processing and scheduling data structures. The controller executes the scheduled lists,
and reports status back to the system.
NOTE: Default CMOS settings of the VMIVME-7750 have USB functions disabled.
This allows more interrupts and less Interrupt Latency for Real Time system. If USB is
enabled, the user must be aware that Interrupt Sharing and Latency will be effected.VMIC’s VMIVME-7750 features additional capabilities beyond those of a typical
desktop computer system. The unit provides four software-controlled,
general-purpose timers along with a programmable Watchdog Timer for
synchronizing and controlling multiple events in embedded applications. The
VMIVME-7750 also provides a bootable Flash Disk system and 32 Kbyte of
non-volatile SRAM. Also, the VMIVME-7750 supports an embedded intelligent VME
bridge to allow compatibility with the most demanding VME applications. These
features make the unit ideal for embedded applications, particularly where standard
hard drives and floppy disk drives cannot be used. The VMIVME-7750 also supports
I
2C by integrating specialized circuitry for these functions.
