单片机复位后,累加器A、PC、PSW的内容为:A.A = FFH PC = 00H PSW = FFHB.A = 00H PC = 0000H PSW = 00HC.A = 07H PC = 0000H PSW = FFHD.A = 00H PC = 00H PSW = 00H
单片机复位后,累加器A、PC、PSW的内容为:
A.A = FFH PC = 00H PSW = FFH
B.A = 00H PC = 0000H PSW = 00H
C.A = 07H PC = 0000H PSW = FFH
D.A = 00H PC = 00H PSW = 00H
参考答案和解析
B
相关考题:
单片机的复位有上电自动复位和手动复位方式,按键手动复位又可以分为电平方式和脉冲方式两种。复位后各内部寄存器恢复初态,并从()开始执行程序。A、PC=0000HB、PC=0030HC、PC=0100H
单片机复位后,累加器A、PC、PSW的内容为()。A、A=FFH PC=00H PSW=FFHB、A=00H PC=0000H PSW=00HC、A=07H PC=0000H PSW=FFHD、A=00H PC=00H PSW=00H
填空题MCS-51单片机PC的长度为()位;SP的长度为()位,DPTR的长度为()位。当单片机上电复位时PC=()H,SP=()H。