题目内容
To show upper case English letter 'L' on a common cathode 7-segment display, the segment code should be set with ______ H in hex form.
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When 8051 serial port operates in Mode 2, to transmit the ninth bit, it should store into ().
8051 serial data transmission is initiated by ().
The 8051 timers in mode 0 will overflow if one more signal comes after the register reaching ().
The 8051 has () 16-bit timer/counters.
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