NGÂN HÀNG CÂU HỎI KỸ THUẬT VI XỬ LÝ potx

1






: 4



 :
 
.
 
.
c) 


.

  :
a)  .
b) 
 .
c) C 
   

d) .

 :
  

  

.
 
 u nhiên.
  
 .


   ?
a) 1
b) 2
c) 3
d) 4


Câu 5: T :
  
 .
 
 .
   
 
   
.

 :
 .
 .
HT 
 .
   


     :
 
 .
.
d .


:
 
 

2
  
d)   .

 :
 
 
  
d)   

   :

b
 



Câu 11:  :
a)   
b)  
c)  
d)   .


     :
a) 0
b) 1
c) High Z
.

Câu 13:   
   
a) 0
b) 1
c) High Z
d) u nhiên.


Câu 14: Bus   :



 
d)  .


 
 .
0
1.
d) High Z


 ):
  .
0
1.
d) High Z


    
  1 byte)
a) 64200H
b) 00642H
c) A07FFH
d) A700FH


    1MB
a) 100
b) 112

c) 128
d) 256

4    1MB
a) 256
b) 128
c) 64
d) 32

:
a) 7 bit
b) 8 bit
c) 9 bit
d) 10 bit

3

:
a) Bit MSB1
b) 1
c) 0
d) 0

:
   
0 lên 1.
b)    
c)   
d)   .

 :
a) 1111 1111 1111 1111B
b) 1000 0000 0000 0001B
c) 0000 0000 1000 0001B
d) 0000 0000 1111 1111B

  ?
a) 2
b) 3
c) 4
d) 5

     
theo H:
a) 2000H
b) 07FFH
c) 0800H
d) 2048H

 
:
.
.
.
 .

Câu 27:  8:
a) 5 bit
b) 6 bit
c) 7 bit

d) 8 bit

  
phân?
a) 4 bit
b) 8 bit
c) 16 bit
.

 
 :
a) 0
b) 1
c) High Z


 :
a) 05H
b) 15H
c) 25H
d) 35H

Câu 31:
a) 13H
b) 23H
c) 1BH
d) 27H

4




8086/8


Câu 1: Trong CPU 8086 BIU  :
a)  
b)  
c) 
d)   .

Câu 2: :
a) .
b) Logic
c) 
d)  

Câu 3:   :
a) 
b)  

c)   
  
d)   .

Câu 4: ).
.
b)   .

d) 
 .


Câu 5:  
a) (Segment)
b)  (offset)
c) .
d) Logic


Câu 6: 80
a) 4 bit
b) 8 bit
c) 16 bit
d) 32 bit


Câu 7: T
a)  
b) 
c)  
d) 


Câu 8: 80:

a) 3
b) 4
c) 5
d) 6

Câu 9:  
a) C  
b)   .
c) 
d)


Câu 10:  
a)   
b)  
c)   
d) .


Câu 11:    
   ?

5
a) AX, BX, CX, DX
b) CS, DS, SS, ES
c) BX, BP, DI, SI
d) IP, SP, AH, AL


Câu 12:    ?

a) AX
b) BX
c) CX
d) DX

Câu 13:  16 bit ?
a) 
b) 
c) 
d) 


Câu 14:  80 ?
a) CS
b) DS
c) ES
d) SS


Câu 15:   Offset khi 80 ?
a) 
b) 
c) 
d) 


Câu 16: CPU 80 ?
a) 6
b) 7
c) 8

d) 9


  (CF) 80 1 khi:
0

  

 
  .


 zero (ZF) 80 1 khi:
0
 0.

0.


Câu 19: CPU 8086 .
a) 1
b) 2
c) 3
d) 4


   

  .


  
 

 , 
 .


Câu 21: Khi 8086 :
.
b)  .
c)  
.
d)  
.


Câu 22: 8086
a) 00000H
b) FFFFFH
c) 00001H
d) FFFF0H

6


Câu 23: 8086 
 
 
  
  

Câu 24  , CPU 8086 :



 .


d) 
.


8086  

 
 

0


a) IP
b) SP
c) BP
d) DP

Câu 27: 






Câu 28: 
a) 





a) 




  

  .

  
 

 
  .



a) ALE
b) DT/R
c) DEN
d) DIR

Câu 32: 
a) 


7




a) 1234H:0005H
b) 1230H:0045H
c) 1200H:0345H


Câu 34: Khi nào thì giá tr



d) 





Câu 1:      
:
a) 
b) 
c) 

d).

Câu 2:  .
a) .Model, .Stack , .Data, .Code
b) equ, segment, public, extrn, include
c) db, dd, dw, dt
d)  
.

Câu 3:   
 ?
a) ANH
b) @49N:
c) 1NH:
d) N KH:


Câu 4:  , kha:
a) Xon DB 1,2,3,fh
b) Yes DB 4,7,h,9
c) Rcl DB 19,7,6,10,3
d) Anh DB 9,3,8,7,0


Câu 5:   
 ?
. Model Small
.Stack 100h
. Data


.Code
Start: MOV AX,@Data  

MOV ES,AX
.

MOV AH,4CH
INT 21H  

8

.
End Start 

a) .exe
b) .com
c) .bat
d) .exe


Câu 6:  :
a) 
b)  
c)    
d)   


Câu 7:  :
a)  
b) thanh ghi

 

d)  
 .


Câu 8:    
 
a)  .
b)  
  .
c)  .
d)   
 .

Câu 9:   :
a) ZF = 0
b) CF = 0
c) PF = 0
d)   .


Câu 10:  : MOV AH,05
MOV AL,03
XCHG AH,AL
a) AH=AL=03
b) AH=AL=05
c) AH=03; AL=05
d) AH=05; AL=03

Câu 11:  :
ORG 1000H
LP DB 0,1,8,27,64,125,216
 :
MOV AL,3
LEA BX,LP
XLAT
 :
a) BX=1000H; AL= 1BH
b) BX=1000H, AL=27H
c) BX=0000H; AL=27
d) BX=0027H, AL= 0


Câu 12:    :
PUSH AX
PUSH BX
PUSH CX
POP AX
POP BX

9
POP CX
 :
a) AX=1000H; BX=2000H; CX=3000H
b) AX=2000H; BX=3000H; CX=1000H
c) AX=3000H; BX=1000H; CX=2000H
d) AX=3000H; BX=2000H; CX=1000H

Câu 13:   ) v  
 :
a) 
.
b) 
.
c) 

d) 
.


Câu 14:  =2; BX=3 sau lAX,BX :
a) AX=5; BX=3
b) AX=5; BX=0
c) 6; BX=0
d) c 6; BX=3


Câu 15:  =9; AH=7; BL=4 sau :
ADD AL,BL
DAA
AND AL,0FH
OR AX,3030H
ADD AL,AH
MOV AH,0
AAA
ADD AX,3030H
a) 3130H
b) 3030H

c) 0100H
d) 3001H


Câu 16:  :
a) CF=0; ZF=0
b) CF=0; ZF=1
c) CF=1; ZF=0
d) CF=1; ZF=1


Câu 17:   :
a) AH=0
b) AH=06
c) AH=02
d) AH=03


Câu 18:     :
a) AL  .
b) 
c) 0.
d) AL=0FH


Câu 19: :
a)  
b)  
c)  00H
d)  

Câu 20: 
 :
a) AND
b) OR
c) XOR
d) NOT


Câu 21:   
a) AL=5; CL=0
b) AL=3; CL=0

10
c) AL=5; CL=4
d) AL=3; CL=4


Câu 22:  =00F0H; DX=0007H, sau
 :
a) JB N
b) JE N
c) JL N
d) JG N


Câu 23:  
a) PF = 0
b) PF = 1

c) ZF = 0
d) ZF = 1


Câu 24: .
a)
b) 
c) 
d) 


  .
a) AL=16H; CF=0
b) AL=16H; CF=1
c) AL=60H; CF=0
d) AL=60H; CF=1


Câu 26:
  .
 
c)  
d) 


Câu 27:  32 bit AXDX=5000 BXCX=40003000H sau  
:
SUB DX,CX
SBB AX,BX
a) AXDX=10001000H

b) AXDX=1000F000H
c) AXDX=0FFF1000H
d) AXDX=0FFFF000H


 :
mov bx, 3235h
and bx, 0f0fh
mov dx, bx
shl bh, 4
or bl, bh
xor bh, bh
mov al, dh
mov cl, 10
mul cl
add al, dl
a) al=19h; bl=25h
b) al=25h; bl=25h
c) al=19h; bl=19h
d) al=0; bl=0


Câu 29: Sau khi  au:
mov ax,VALUE
mov bx,ax
shl ax,2
add ax,bx
shl bx,3
sub ax,bx

11
a) AX=(-2)* VALUE
b) AX=(-3)* VALUE
c) AX=(-4)* VALUE
d) AX=(-5)* VALUE


Câu 30:  =2 :
add si, si
add si, OFFSET TABLE
mov ax, cs:[si]
jmp ax
TABLE: DW ZERO
DW ONE
DW TWO
TWO: O
.
.
ONE: 
.
.
ZERO: O
.
.
a)  
 .
b)  

c)  


d)  



   
:
.

.

.

p.


 :
MOV CX,99
MOV AX,0
MOV BX,1
TIEP: ADD AX,BX
INC BX
CMP AX,CX
JNA TIEP
a) BX=24
b) BX=25
c) BX=14
d) BX=15


 :

MOV CX,99
MOV AX,0
MOV BX,1
TIEP: ADD AX,BX
ADD BX,2
LOOP TIEP
a) AX=9800
b) AX=9801H

12
c) AX=9800H
d) AX=9801



ADD AL,BL
ADD AH,BH

a) 10101H
b) 0101H.
c) 0001H
d) 10001H



a) 
b) Thanh ghi BX
c) Thanh ghi AX
d) Thanh ghi AL.










Câu 37: Tr









a) 













:
a) 
b) 00H
c) 09H



Câu 41?

13



  ELSE
 


Câu 42
XOR CX,CX
MOV AH,1
TIEP: INT 21H
CMP AL,27H
JE RA
INC CX
JMP TIEP
RA:

a) IF THEN
b) IF THEN ELSE
c) WHILE
d) FOR








Câu 1:   :
a)   
.
b)   
.
c)   
.
.

Câ  
a) 
b)   .
c) .
d).


Câu 3:   
 ?

a)  ng
b)  .
c)  
.
d) .

  :

14
EPROM2 (256KB)
EPROM1 (256KB)
SRAM2 (256KB)
SRAM1 (256KB)

  
 



Câu 5    
:


a) 40000H  7FFFFH
b) 50000H - 8FFFFH
c) 80000H  BFFFFH
d) D0000H  FFFFFH


Câu 6:     

  :
a)  
b)  .
c)  u
IO/M-
d) .


Câu 7: :
a) 6
b) 7
c) 8
d) 9


Câu 8:    :


a) 00000H
b) FF800H
c) FF900H
d) FFFFFH


Câu 9:    
?
a) 3
b) 4

15

c) 5
d) 6

Câu 10:   ) 
 ?
a) 1
b) 2
c) 3
d) 4


Câu 11:    
  802861  4M 
2M.
a)

b)

c)


d)  
 .



Câu 12: :

:

a)  0FBH
b) 0FBH
c) 03H
d) 03H

Câu 13: :

A22
A23
CS_SRAM1
CS_SRAM 2
NC
CS_EPROM
74LS139
2
3
1
4
5
6
7
A
B
G
Y0
Y1
Y2
Y3
A23
A22

CS_SRAM 2
CS_SRAM1
CS_EPROM
74LS139
2
3
1
4
5
6
7
A
B
G
Y0
Y1
Y2
Y3
U4A
74LS08
1
2
3
A22
A21
CS_SRAM 2
CS_SRAM1
CS_EPROM
74LS139
2

3
1
4
5
6
7
A
B
G
Y0
Y1
Y2
Y3
U4A
74LS08
1
2
3
A3  A7



A0
A1
A2
IORC
A
B
C
G2B

G2A
Y0
Y7
80286
system
A
22
A
0
:
D
7
D
6
A
23
D
5
D
4
D
3
D
2
D
1
D
0
74
LS

245
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
A
0
A
1
A
2
A
3
A
4
A
5
A

6
A
7
E
DIR
5
V

16


   :
a) IN AL,0F000H
b) IN AL,01H
c) MOV DX,0F000H
IN AL,DX
d) MOV DX,0000H
IN AL,DX


Câu 14: ?


a) 
b)   THEN
c)  
d) .


Câu 15:  

:


a) 7FH
b) 7FH
c)   7FH
d)   0FFH.



Sai



A0
A1
IORC
A
B
C
G1
G2A
G2B
Y0
Y7
IOWC
A2  A6
IO/M
A7

17


 
:



00H
00H
7CH
7CH.






Câu 1: :
a) 3
b) 4
c) 5
d) 6

Câu 2:  :
a) 
b) Ra
c) .
d) 

Câu 3:    :
a)  .
b)  .
c)   .
d)  .


Câu 4: : CS=1; A1=0; A0=1; RD=0; WR=1:
a)   8255.
b)   8255.
c)   8255.
d)  .


Câu 5: :
a) 
b) Ra
c) .
d)  .


Câu 6:   8255 tron
INTR.
a) RD
b) WR
c) ACK
d) IBF


Câu 7:  .

a) RD
b) WR
c) ACK
d) INTR





A0
A1
IORC
A
B
C
G1
G2A
G2B
Y0
Y7
IOWC
A2  A6
IO/M
A7

18
Câu 8: :
a) .
b) .
c) 

d) 8255.

Câu 9:   1 khi:
a) OBF=1; ACK=1; INTE=1
b) OBF=0; ACK=1; INTE=1
c) OBF=1; ACK=0; INTE=1
d) OBF=1; ACK=1; INTE=0


Câu 10:   8255:
a)   
.
b)    
.
c)   
d)  


Câu 11:  --
:
a) 80H
b) 81H
c) 82H
d) 83H


Câu 12:   :

a) C0H, C1H, C2H, C3H
b) C0H, C2H, C4H, C6H
c) C1H, C3H, C5H, C7H
d) C1H, C2H, C3H, C4H

Câu 13:    
:


a) 00H, 02H, 04H, 06H
b) 01H, 03H, 05H, 07H
c) 70H, 72H, 74H, 76H
d) 03 câu.



19
Câu 14:   :



a) 52H
b) 53H
c) 54H
d) 55H


    
:
a) IN AL,70H

b) IN 70H,AL
c) MOV DX,70H
IN DX,AL
d) .


Câu 16: :
a) 
b) Song công
c) 
d) .


Câu 17:    :






a) 
b) 
c) 
d) .


Câu 18: :
a) 1 bit
b) 1.5 bit
c) 2 bit

d) .


Câu 19:.
a) 1
b) 2
c) 3
d) 4


Câu 20:   ?
a) .
b)  
c) 
d)  .


Câu 21: :
a) 
b) Ra
c) 
d)  .


  
  :
TxD
Stop bit
Start bit




Making


20
a) 110 Baud
b) 220 Baud
c) 330 Baud
d) 440 Baud


Câu 23:     
?


a) 03H
b) 07H
c) 0FH
d) F0H


Câu 24:   :
a)  
b)  
c)  
d)  .


Câu 25:  8251 c c bit B2B1  :

a)  
b)  .
c)  
d) Không  .


Câu 26:   :
a)  
b) 
c) 
không
d) .


Câu 27:   :
a)  
b) 8251
c)  8251
d)  .


Câu 28:  :
a) 
b) .
c) 
d)   .

.

.

8 BIT 8051.

Câu 1: :
a)  
chip
b)  
chip.
c) 
chip
d)  
riêng

Câu 2:  :
RESET
CLK
A0
IORC
IOWC
A1
A3
A2
U1
8251
27
28
1
2
5

6
7
8
21
20
12
13
10
11
15
18
9
19
3
14
25
16
22
24
17
23
D0
D1
D2
D3
D4
D5
D6
D7
RESET

CLK
C/D
RD
WR
CS
TXRDY
TXE
TXC
TXD
RXD
RXRDY
RXC
SY/BR
DSR
DTR
CTS
RTS
U2A
74LS139
2
3
1
4
5
6
7
A
B
G
Y0

Y1
Y2
Y3
DATA BUS

21
a) 2
b) 3
c) 4
d) 5

Câu 3: EA 8051 :
a)  8051
b) 8051
c) 8051
d) 8051.


Câu 4:  ng:
a) 00
b) 07
c) 0FH
d) FFH


Câu 5:  :
a) 128 byte
b) 256 byte
c) 512 byte
d) 1024 byte

Câu 6: 088051:
a) Byte 081
b) Byte 08
c) Bit 0 1.
d) Bit 08 1.


Câu 7: :
a) 1
b) 2
c) 3
d) 4


Câu 8: , 8051    o?
a) 0
b) 0.
c) 
d) 1.

Câu 9: 1 trong thanh ghi PSW 8051   :
a) 
b)  
c)
d) 
.

Câu 10: 8051  :
a)   p.
b)   

c)   

d)      .


Câu 11:  :
a) 

b) 
1.
c) 
0.
d)  0 lên 1.


Câu 12: (timer) c
:
a) 8 bit
b) 13 bit
c) 16 bit
d) 24 bit.

Câu 13:  :

22
a) .

b) .
c) 1
d) 1


Câu 14:     :
a)   .
b)  .
c)   
d)  .


Câu 15:  08051 :
a) 
b)    .
c)   
 .
d)   
 .


Câu 16:    :
a)  0.
b)   .
c)  

d)  
10.

Câu 17:    :
a)  
.
b)  .
c)  .
d)  .


Câu 18: 8051  :
a) .
b)  
c)  
.
d) C.


Câu 19:    :
a) 2
b) 3
c) 4
d) 5


Câu 20: Bit TR trong thanh ghi TCON a 8051  :
a) 
b) .
c)  
d)  .

Câu 21:   
 ?
a) 00H
b) FFH
c) 11H
d)  .


Câu 22:  
 :
a) 8051.
b)   8051
c)  
d) .


Câu 23:  timer 18051  
:
a) 0001 0000B
b) 0101 0000B
c) 1001 0000B
d) 0000 0001B


Câu 24: ?

23
a) 2
b) 3
c) 4

d) 5


Câu 25:    
     trong:
a) Thanh ghi SBUF
b) Thanh ghi SCON
c) Trong thanh ghi B
d) Trong thanh ghi A


Câu 26:    8051 .
a)    

b)    
 .
c)    
 .
d) .


Câu 27: 8051 
?
a) 0 
b) 
c) T.
d)    
.

Câu 28:  
u:
a) Song công
n song công
c) 
d) .


Câu 29   

a) @R1
b) @R2
c) @R3
d) @R4


Câu 30,70H 8051  :
.
 
 .
 

   
.


 .
 
07
 

 07
  07
.


Câu 32:   :
a)  
 .
b)  
 .
c)  
 .
d)  
 .

Câu 33: 8051 
:
ORG 0
MOV DPTR, #TAB1

24
MOV A,#0FFH
MOV P1,A
L01:
MOV A,P1
MOVC A,@A+DPTR
MOV P2,A
SJMP L01
;
ORG 300H

TAB1: DB 0,1,4,9,16,25,36,49,64,81

END
a) 300H
b) 0H
c) 0149H
d) 0149


Câu 34:  :
a) 
b) 1
c) 
d) 2

Câu 35: DJNZ R2,AGAIN :
a)  
AGAIN.
b)  

c)  
0.
d)  
AGAIN khi R2  0.


Câu 36CJNE8051 :
a) 1
b) 2
c) 3

d) 4


  :
a) 64KB
b) 4KB
c) 2KB
d) 256B


:
MOV A, #0
MOV R2, #0
AGAIN: ADD A, #03
DJNZ R2, AGAIN
MOV R5, A
 ?
a) 255
b) 256
c) 257
d) 258


:
DELAY: MOV R3, #200 ; 1 MC
HERE : DJNZ R3, HERE ; 2 MC
RET ; 1 MC
   
  

25
 ?
a) 436.16 µs
b) 436.17 µs
c) 436.18 µs
d) 436.19 µs


  
:
MOV A, #55H
BACK: MOV P0, A
ACALL DELAY
CPL A
SJMP BACK
1 liên t
  1
  0
 0 lên 1.


   :
ORG 0000H
MOV DPTR, #200H
CLR A
MOVC A, @A + DPTR
MOV R0, A
INC DPTR
CLR A
MOVC A, @A + DPTR

MOV R1, A
INC DPTR
CLR A
MOVC A, @A + DPTR
MOV R2, A
HERE: SJMP HERE
ORG 200H
MYDATA: 
END

b) R0




 
nhiêu?
ORG 000
MOV DPTR, #300 H
MOV A, #0FFH
MOV P1, A
BACK: MOV A, P1
MOVC A, @A + DPTR
MOV P2, A
SJMP BACK

ORG 300H
XSQR - TABLE: