微机原理与接口技术考试试题及答?- 百度文库 ر

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ֱ׼ A,ԣ

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1 D 2 C 3 B 4 D 5 B

6 A 7 C 8 A 9 A 10 B

11 A 12 D 13 B 14 C 15 D

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1_ʱ____

2_CPU____;_洢____;_I/O豸____

3_4_____16________16________6_________20____ 4_εַ_____ƫƵַ___ 5_ 1___ 6_45H___

7_Խ____Խ____Խ___ 8_ȡʱ____ȡ___ 9____

10_2FAH,2FCH,2FEH___

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1. A19 A18 A17 A16 A15 A14 A13 A12 C A0 0 0 һ鷶Χ 0 0 1 1 1 1 0

1 Ϊ3C000H3EFFFH 3A19 A18 A17 A16 A15 A14 A13 A12 0 ڶ鷶Χ 0 0 1 1 0 0 1

1 Ϊ32000H33FFFH 3

21N0=1MHZ/2KHZ=500GATE0Ӹߵƽ+5V 22ɽOUT0CLK1Ϊʱ壻 33N1=2KHZ/2HZ=1000 20MOV DX,186H

MOV AL,00110111B 2 OUT DX,AL MOV DX,180H

MOV AL,00H 1 OUT DX,AL MOV AL,05H

OUT DX,AL 11MOV DX,186H

MOV AL,01110111B 2OUT DX,AL MOV DX,182H

MOV AL,00H 1OUT DX,AL

1 2C A0

0 1 2 ַ

MOV AL,10H

OUT DX,AL 1

3MOV AL,10001111B

OUT 93H,AL 2 IN AL,91H 1 OUT 90H,AL 1

·£ 64.1MOV AL,0001011B

OUT 20H,AL 1 MOV AL,00110010B

OUT 21H,AL 2 MOV AL,00010011B

OUT 21H,AL 2 2ʾE˿Aͳ30H 2

ʾO˿Aͳ01H 2

£MOV AL,10000000B

OUT 63H,AL 2 MOV AL,30H

OUT 60H,AL 2 MOV AL,01H

OUT 60H,AL 2

΢ԭӿڼԾ

A

רҵ ѧ ɼ

һ(ÿ1֣20)

1. гΣ240H˿ڶȡݣǷΪ20H241H˿0תNEXT

MOV DX , (1) (2) AL, DX (3) AL, 20H (4)______ MOV DX (5) MOV AL0 OUT DX,AL ..

NEXT: 2. ͼ1еһͨ8255AϵͳISAгΣʹȶʾ8ͱΪ7FH

ͼ1

MOV DX, (6)