题目内容

When the serial port of AT89S51 extends the parallel I / O port, the working mode of the serial interface is selected.

A. Mode 0
B. Mode 1
C. Mode 2
D. Mode 3

查看答案

搜索结果不匹配？点我反馈

更多问题

The register that controls the working mode of the serial port is.

A. TCON
B. PCON
C. TMOD
D. SCON

查看答案

When the serial port of 8051 single chip microcomputer is in working mode 0, ().

A. The data is input from RDX and output from TXD
B. The data is output from RDX and input from TXD
C. The data is input or output from RDX, and the synchronization signal is output from TXD
D. The data is input or output from TXD, and the synchronous signal is output from RXD

查看答案

When MCS-51 is used to expand parallel I / O port, the working mode of serial interface is selected ()

A. Mode 0
B. Mode 1
C. Mode 2
D. Mode 3

查看答案

In serial communication, the registers sent and received in 8051 are ().

A. TMOD
B. SBUF
C. SCON
DPTR

查看答案

When the serial port of AT89S51 extends the parallel I / O port, the working mode of the serial interface is selected.

A. Mode 0 B. Mode 1 C. Mode 2 D. Mode 3

The register that controls the working mode of the serial port is.

When the serial port of 8051 single chip microcomputer is in working mode 0, ().

When MCS-51 is used to expand parallel I / O port, the working mode of serial interface is selected ()

In serial communication, the registers sent and received in 8051 are ().

A. Mode 0
B. Mode 1
C. Mode 2
D. Mode 3