EMERSON KJ3001X1-CA1渦流傳感器前置器
USB主機控制器通過(guò)處理和調度數據結構在系統存儲器和USB之間移動(dòng)數據?？刂破鲌绦杏媱澚斜?，并向系統報告狀態(tài)。注意：VMIVME-7750的默認CMOS設置禁用USB功能。這為實(shí)時(shí)系統提供了更多的中斷和更少的中斷延遲。如果啟用了USB，用戶(hù)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的其他功能。該單元提供四個(gè)軟件控制的通用計時(shí)器以及一個(gè)可編程看門(mén)狗計時(shí)器，用于同步和控制嵌入式應用程序中的多個(gè)事件。VMIVME-7750還提供了可啟動(dòng)的閃存系統和32 KB的非易失性SRAM。此外，VMIVME-7750支持嵌入式智能VME網(wǎng)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(wú)法使用標準硬盤(pán)驅動(dòng)器和軟盤(pán)驅動(dòng)器的情況下。VMIVME-7750還通過(guò)集成這些功能的專(zhuān)用電路來(lái)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.
