本文介绍以大规模集成电路日本东芝T3444 BS格式器为基础的标准盒式数字磁带机控制器,具有功能强,使用方便,可靠性好,价格便宜等特点. (一)T3444 BS工作原理及主要功能 T3444 BS是实现高速数据功能的大规模集成电路,可适应各种应用目的.这里它以输入/输出控制为主要目的,将运算处理部件(ALU)、随机存取存贮器(RAM)、只读存贮器(ROM)、输入/输出接口等做在一块硅片内.实质是采用微程序方式实现对盒式数字磁带机进行一系 This article introduces the standard cassette digital tape controller based on Toshiba T3444 BS formatter of large scale integrated circuit, which has the characteristics of strong function, easy to use, good reliability and low price etc. (A) T3444 BS working principle and main Function The T3444 BS is a large-scale integrated circuit capable of high-speed data functions that can be used for a variety of purposes. Here it is mainly for the purpose of input / output control. The arithmetic processing unit (ALU), random access memory (RAM) Read-only memory (ROM), input / output interfaces, etc. in a piece of silicon in essence is the use of micro-program to achieve a digital cassette tape drive system