刷新电路 [计] refresh circuit
- 存贮器存贮功能故障,存贮器地址译码功能故障,动态刷新功能故障以及奇偶校验电路的固定故障都可得到检测。
The faults in the data storage function, the memory decoding function, the refreshing function and PG/PC can be detected quickly. - 其内部主要由DMA控制器(82C37)、中断控制器(82C59)、可编程间隔计时器(82C54),DRAM刷新控制器,等待状态产生器,系统重置电路组成。
It is mainly composed of DMA controller (82C37), interrupt controller (82C59), programmable interval timers(82C54), DRAM refresh control, wait state generator and system reset logic.
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