| 术语 | microprocessor encoder interface |
| 释义 | microprocessor encoder interface 微处理机［器］编码器接口 A keyboard encoder which can interface with a microprocessor in either a scanned or interrupt-driven mode. In a scanned system, the microprocessor periodically monitors the encoder to determine whether any switches have been pressed. If it detects a switch depression, the microprocessor collects and processes the key data. In an interrupt-driven system, a key depression interrupts the microprocessor program flow and causes an interrupt service routine to process the key data. 一种键盘编码器,能以扫描方式或中断驱动方式与微处理机相连接。在扫描方式中,微处理机 定时地监督编码器, 以确定是否有键被按下,如查出一个键被按下,则微处理机就收集并处理键盘数据。在中 断驱动方式中,键盘按下将中断微处理机程序流,并使一中断服务程序来处理键盘数据。 |
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