单片机复位后,SP、PC、I/O口(P0、P1、P2、P3)的内容为()。A、SP=00H PC=1000H I/O 口=FFHB、SP=00H PC=0000H I/O 口=00HC、SP=07H PC=0000H I/O 口=FFHD、SP=07H PC=0000H I/O 口=00H
单片机复位后,SP、PC、I/O口(P0、P1、P2、P3)的内容为()。
- A、SP=00H PC=1000H I/O 口=FFH
- B、SP=00H PC=0000H I/O 口=00H
- C、SP=07H PC=0000H I/O 口=FFH
- D、SP=07H PC=0000H I/O 口=00H
相关考题:
单片机复位时作如下初始化操作( ) A.PC=0000, SP=00,P0=00,P1=00,P2=00,P3=00B.PC=0030, SP=07,P0=00,P1=00,P2=00,P3=00C.PC=0000, SP=07,P0=FF,P1=FF,P2=FF,P3=FF
单片机复位后,SP、PC、I/O口的内容为( ) A.SP = 07H PC = 00H P0 = P1 = P2 = P3 = FFHB.SP = 00H PC = 0000H P0 = P1 = P2 = P3 = 00HC.SP = 07H PC = 0000H P0 = P1 = P2 = P3 = FFHD.SP = 00H PC = 00H P0 = P1 = P2 = P3 = 00H
单片机复位后,SP、PC、I/O口的内容为()A、SP=07HPC=00HP0=P1=P2=P3=FFHB、SP=00HPC=0000HP0=P1=P2=P3=00HC、SP=07HPC=0000HP0=P1=P2=P3=FFHD、SP=00HPC=00HP0=P1=P2=P3=00H
填空题MCS-51单片机的P0~P3口均是()I/O口,其中的P0口和P2口除了可以进行数据的输入、输出外,通常还用来构建系统的()和()。