题目内容

The number of bytes reserved for each interrupt vector table of 8051 is ______

查看答案

搜索结果不匹配？点我反馈

更多问题

If Timer 1 of 8051 counts in mode 2, after executing the instruction “MOV TL1, #00H”, it will generate the overflow after counting ______ numbers.

The P2 port of 8051 can be used for general I/O or as the low byte of the address bus for access external memory with MOVX instruction.

In 8051, () interrupt has the highest natural priority.

A. External 0
B. External 1
C. Timer 0
D. Serial port

Which of the following instruction will load the value 50H into the high byte of Timer 1? ()

A. MOV TH1, #50H
B. MOV TH1, 50H
C. MOV TL1, #50H
D. MOV TL1, 50H