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定时器T0的工作方式3是()
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8051串行口工作在方式1,波特率为2400 bits/s,则每秒钟最多可传送()个字节的数据。
The contents of RAM location 20H and CY are 00H and 1. After execution of following 2 instructions “ORL C, 00H” and “MOV 00H, C”, the contents of internal RAM address 20H will be ( )
Which of the following SFRs is bit-addressable? ( )
Bit-addressable locations of the 8051 include( )
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