random access module

The paper gives emphasis to the core module of call access process – Random Access Channel Module, makes a detail introduce of call admission process, including the initialization of random access channel module 、 initialization failure and the access handling of new call.

着重对呼叫接入的核心模块――随机接入信道模块进行研究。给出了呼叫接入的详细过程，包括随机接入信道处理模块初始化、初始化失败以及新呼叫的接入处理。

Based on the jointed test action group ( JTAG) protocol, instructions and scan chain were introduced. With test access port ( TAP) module exchanging serial input with parallel output, register files and random access memory on chip were read or written in parallel.

在JTAG接口协议的基础上，增加指令和扫描链，同时通过测试访问端（TAP）控制把串行输入转换成并行输出，并行访问数字信号处理器的寄存器文件和片上存储器单元，实现嵌入式模拟器。