Generic specification for stored program control analogue private automatic branch telephone exchange system GB/T14716-1993程控模拟用户自动电话交换机通用技术条件
With the background of the USB interface design in stored program control switching system for teaching, the paper presents a solution based on EZ-USB, in which the design and implementation of the hardware and software on both host and device sides are demonstrated in details. 本文以程控交换实验系统的USB接口设计为背景,给出了基于EZ-USB控制器的解决方案,重点论述了设备端和主机端软、硬件的设计与实现方法。
In recent years owing to the development of microprocessor technology, the small size SPC ( Stored Program Control) electronic switching system has been widely used. 近期,由于微处理机技术的发展,使小型程控交换机得到了广泛的应用。
The Design of USB Interface in Stored Program Control Switching System for Teaching 程控交换实验系统USB接口设计