An interface unit or circuitry that converts data to and from the representation used by a particular peripheral device or class of peripheral devices ; for example , a device that converts between bit serial and bit parallel and resolves differences in transmission speeds 一种接口部件或电路,用来把数据转换成某种特殊的外围设备上的表示或某类外围设备上的表示或把此种表示转换成数据。例如,一台在串行位和并行位之间作转换且解决传输速度差别的设备。
8051 processor testing system was designed to test the sample in 16 bits parallel interface . because of the limitation of the testing system interface , however , easyarm2131 based on arm7tdmi - s was selected to use in 18 bits parallel interface test . and it sufficed the higher bits parallel interface test such as 18 bits , 24 bits , or more , while 8051 testing system ca n ' t do 为测试16bit并行接口,设计了以8051芯片为处理器的测试机;在测试18bit并行接口时,由于8051测试机的接口限制,采用了基于arm7tdmi - s核的easyarm2131开发板系统,解决了8051无法满足18bit乃至以后可能用到的24bit甚至更高的并行接口问题。