小氮肥厂微机监控系统的一种断电信息保护技术

A MEMORY MESSAGE PROTECTION TECHNIQUE FOR MICROCOMPUTER-MONITORING SYSTEMS IN SMALL AMMONIA PLANTS AT THE POWER FAILURE

为了解决断电信息存储问题,我们成功地研制了一种CE—161 16KB非易失性存储器,与Z—80 CPU之间的接口电路。本文即介绍了这种接口电路的时序分析、设计及其在小合成氨厂微机监控系统中的应用。

In order to solve the problem of information storage at the power failure we designed successfully an interface circuit between the CE-161 16KB nonvolatile memory and the Z-80 CPU. This paper discusses the time-sequence analysis, interface circuit design and its application to the microcomputer-monitoring systems in small ammonia plants