题目内容
MCS-51 response interrupt vector address is.
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When the serial port of MCS-51 MCU receives or transmits a frame of data, the () in scon is applied to CPU for interrupt.
When the it1 and it0 bits in the timer control register TCON are cleared to 0, the external interrupt request signal mode is ().
Start the timer and start it with SETB TRi.
The interrupt response of. 8051 MCU to the highest priority is unconditional.
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