RELATED DOCUMENTS ............................................................................................................................................................... 1
UEVB O VERVIEW .............................................................................................................................................................................. 3
TABLE 1A. PARTS FOR UEVB FOOTPRINTS ............................................................................................................................... 3
KEY FUNCTIONS AND PINOUTS.................................................................................................................................................. 6
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2
C/SPI BUS CO NNECTIONS......................................................................................................................................................... 6
BILL OF MATERIAL (BO M) ............................................................................................................................................................... 8
TABLE 2A. BILL OF MATERIAL FOR U1A .................................................................................................................................... 8
TABLE 2B. BILL OF MATERIAL FOR U1B..................................................................................................................................... 8
TABLE 2C. BILL OF MATERIAL FOR U1C..................................................................................................................................... 9
TABLE 2D. BILL OF MATERIAL FOR U1D, OPTION-A................................................................................................................ 9
TABLE 2E. BILL OF MATERIAL FOR U1D, OPTION-B ..............................................................................................................10
POWER SUPPLY CONNECTIONS ...................................................................................................................................................11
TABLE 3. POWER SELECTION JUMPERS (JP1, JP2).................................................................................................................11
UEVB CO NNECTOR SIGNALS DESCRIPTION................................................................................................................................12
TABLE 4. USER INTERFACE CONNECTOR SIGNALS (CN1) .....................................................................................................12
CONNECTING THE FSYNC LINE.................................................................................................................................................13
SERIAL BUS LEVELS, SPEEDS, AND TERMINATIONS ..............................................................................................................13
DATA GATHERING OPTIONS .........................................................................................................................................................14
CONNECTION TO THE INVENSENSE ARM CONTROLLER BOARD........................................................................................14
USE OF THE UEVB WITHOUT AN ARM CONTRO LLER BOARD .............................................................................................14
SPECIAL INSTRUCTIONS ................................................................................................................................................................15
BOARD LAYO UT AND FOOTPRINT DISCUSSION ....................................................................................................................15
当今的计算机外部设备,都在追求高速度和高通用性。为了满足用户的需求,以Intel为首的七家公司于1994年推出了USB(Universal Serial Bus,通用串行总线)总线协议,专用于低、中速的计算机外设。目前,USB端口已成为微机主板的标准端口;而在不久的将来,所有的微机外设,包括键盘、鼠标、显示器、打印机、数字相机、扫描仪和游戏柄等等,都将通过USB与主机相连。
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