參數(shù)資料
型號: XIB-E
廠商: Digi International/Maxstream
文件頁數(shù): 9/64頁
文件大?。?/td> 1858K
描述: BOARD INTERFACE ETHERNET
標(biāo)準(zhǔn)包裝: 1
附件類型: 接口板
適用于相關(guān)產(chǎn)品: XStream 和 Xcite 收音機
XStream"燨EM燫F燤odule?燩roduct燤anual爒5.x00燵2006.02.24]?/DIV>
2. RF燤odule燨peration?/DIV>
2.1. Serial Communications
The XStream OEM RF Module interfaces to a host device through a CMOS-level asynchronous
serial port. Through its serial port, the module can communicate with any UART voltage
compatible device or through a level translator to any RS-232/485/422 device.
2.1.1. UART-Interfaced Data Flow
Devices that have a UART interface can connect directly through the pins of the XStream Module
as is shown in the figure below.
Figure?01. System燚ata燜low燚iagram爄n燼燯ARTinterfaced爀nvironment牋  ?/DIV>
(Lowasserted爏ignals燿istinguished爓ith爃orizontal爈ine爋ver爏ignal爊ame.)?/DIV>
 
 
 
 
 
 
 
Serial Data
Data enters the XStream Module through the DI pin (pin 4) as an asynchronous serial signal. The
signal should idle high when no data is being transmitted.
The UART performs tasks, such as timing and parity checking, that are needed for data
communications. Serial communication consists of two UARTs configured with compatible
parameters (baud rate, parity, start bits, stop bits, data bits) to have successful communication.
Each data packet consists of a start bit (low), 8 data bits (least significant bit first) and a stop bit
(high). The following figure illustrates the serial bit pattern of data passing through the module.
Figure?02. UART燿ata爌acket?x1F?decimal爊umber?31)燼s爐ransmitted爐hrough爐he燲Stream燤odule?/DIV>
Example燚ata燜ormat爄s?N1?bits?爌arity??爋f爏top燽its)?/DIV>
 
 
 
 
 
 
 
牋牘?006燤axStream,營nc.燙onfidential燼nd燩roprietary?/DIV>
9?/DIV>
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