In serial communication, the registers sent and received in 8051 are ().
A. TMOD
B. SBUF
C. SCON
DPTR
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The unit of Porter is ()
A. Characters per second
Bit per second
C. Frames per second
D. Bytes per second
In the CPU, the registers that reflect the running state of the program or some characteristics of the operation results are ()
A. PC
B. PSW
C. A
D. SP
The function of the 9th data bit of serial port communication can be defined by the user.
A. 对
B. 错
The content of the 9th bit of the transmitted data is prepared in advance in the TB8 bit of the SCON register.
A. 对
B. 错