The system abandons the serial communication that is low speed and low effect , but change to use the printing port , realizes the high speed , efficient parallel communication , further more choose to use to the ecp ( extended capabilities port , ) mode of parallel communication . according to the outside physical transfer ability , this mode can automatic adjust the transfer speed , and realize the data communication with the arbitrary speed 該系統(tǒng)在上下位機的數(shù)據(jù)傳輸中,摒棄了低速、低效的串行通訊,而改用打印口,實現(xiàn)了高速、高效的并行通訊,并且選用了并口的ecp ( extendedcapabilitiesport ,擴展功能接口)模式,可以根據(jù)外設的實際傳輸能力自動調整傳輸速度,實現(xiàn)任意速度的數(shù)據(jù)通訊。
extended capabilities port meaning:[Computer] < hardware > (ECP) A parallel printer interface for IBM PC compatibles, supported by several, mainly US, manufacturers. Not to be confused with the more common Enhanced Capa...extended capabilities port en francais:sortie parallèle à capacité étendue, ou port de communication amélioré, sortie parallèle rapide soutenant une communication bi-directionelleextended capabilities port перевод:порт расширения функциональных возможностей