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Start the timer and start it with SETB TRi.
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The interrupt response of. 8051 MCU to the highest priority is unconditional.
During interrupt initialization, only bit operation instruction can be used to set the state of interrupt controller, not byte operation instruction.
After the MCS-51 system is reset, the interrupt request flag TCON and scon are all 0.
The function of IE in interrupt permission register of MCS-51 single chip microcomputer is to open or shield the interrupt sources.答案:
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