采用单片微机的缓冲存储器

• 作 者: 罗万钟
• 出 处: 电子技术应用
• 发表日期: 1988年09期
• 关键词: 缓冲存储器 缓存器 时钟源 存水 单片微机 存储区 比特数 选通信号 数码管 标称值

一、概述缓冲存储器(以下简称缓存器)用于数字通信中的码速率调整。当外来信码的时钟(以下称存时钟)和本地的时钟(以下称取时钟)其标称值相同,但并不是同一时钟源时,为调整存信码的速率和相位,使之和取时钟完全一致,这时就需用缓存器来作调整。缓存器的工作原理如水库的存水和放水过程。先将存信码存入缓冲存储区,当存到缓冲区的一半时才允许边存边取。当存指针追上取指针时称为“溢出”,

First, an overview Buffer memory (hereinafter referred to as the buffer) for digital communications in the code rate adjustment. When the external clock (hereinafter referred to as the clock) and the local clock (hereinafter referred to as the clock) have the same nominal value but not the same clock source, in order to adjust the rate and phase of the stored signal, Clock exactly the same, then need to use the buffer for adjustment. The working principle of buffer memory and water discharge process. Save the first deposit code into the buffer memory, when it is saved to the buffer half to allow the edge to take. When the existing pointer to catch the pointer when called “overflow”