transcation meaning in English

更新数据

Tcap 800mhz cdma digital cellular mobile communication no . 7 signalling test specification . transcation capability application part
800mhz cdma数字蜂窝移动no . 7信令测试规范.事务处理
Firstly , a top - down design methodology based on systemc is presented . the methodology is based on four system abstract models : function model , transcation model , communication model and implementation model . a csma / cd mac protocol concrete example is presented to verify it , and its advantages and disadvantages are also evaluated . finally , the method for translating a systemc source into an equivalent vhdl program is discussed . with the aided tools lex and yacc , a prototype of systemc - vhdl translation system is implemented
本文的研究内容首先是提出了一种基于systemc的自顶向下的设计流程。这一设计流程基于系统的四层抽象模型：功能模型，事务模型，通信模型和实现模型。并以一个csma / cdmac层协议的实现实例验证了这一设计流程，评估了systemc在soc设计中的优缺点。