¼ªÊ×´óѧ΢»úÔ­ÀíÆÚÄ©ÊÔ¾í(2)

13£® Ò»¸ö4λµÄD/Aת»»Æ÷£¬ÂúÁ¿³ÌµçѹΪ10V£¬ÆäÏßÐÔÎó²îΪ¡À

1LSB£¬µ±ÊäÈëΪ0CHʱ£¬ÆäÀí2ÏëÊä³öµçѹֵΪ________________

¶þ¡¢Ñ¡ÔñÌâ

41. ³ÌÐò¼ÆÊýÆ÷£¨PC£©µÄλÊýÈ¡¾öÓÚ______A______

A. ´æ´¢Æ÷µÄÈÝÁ¿ B. Ö¸Áî×Ö³¤ C. »úÆ÷×Ö³¤

42. ÔËËãÆ÷Óɺܶಿ¼þ×é³É£¬ÆäºËÐIJ¿·ÖÊÇ____B___

A. Êý¾Ý×ÜÏß B. ËãÊõÂß¼­µ¥Ôª C. ÀÛ¼ÓÆ÷ D. ¶à·¿ª¹Ø

43. 8λ²¹Âë²Ù×÷Êý¡°10010011¡±µÈÖµÀ©Õ¹Îª16λºó£¬Æä»úÆ÷Êýλ___A___¡£

A. 1111111110010011 B. 0000000010010011 C. 1000000010010011

44. 8088CPU¸´Î»ºó£¬³ÌÐòÖØÐ¿ªÊ¼Ö´ÐеÄÂß¼­µØÖ·Îª______B____ ¡£

A. FFFF0H B. FFFF£ºFFF0H C. FFFF£º0000H D. 0000£º0000H 45. ÈôAX=65ACH£¬BX=B79EH£¬ÔòÏÂÁжÔÖ¸ÁîÖ´Ðнá¹ûÐðÊöÕýÈ·µÄÊÇ___________

A. Ö´ÐÐADD AX£¬BXºó£¬CF=1£¬OF=1 B. Ö´ÐÐSUB AX£¬BXºó£¬SF=1£¬OF=0 C. Ö´ÐÐTEST BX£¬AXºó£¬OF=0£¬CF=0 D. Ö´ÐÐXOR AX£¬BXºó£¬PF=1£¬IF=0

46. ij¼ÆËã»úµÄÖ÷´æÎª3KB£¬ÔòÄÚ´æµØÖ·¼Ä´æÆ÷ÐèÒª___C____λ¾Í×ã¹»ÁË¡£

A. 10 B. 11 C. 12 D. 13 47. ¸ßËÙ»º³å´æ´¢Æ÷£¨Cache£©µÄ´æÈ¡ËÙ¶È_____C____

A. ±ÈÄÚ´æÂý£¬±ÈÍâ´æ¿ì

41

B. ±ÈÄÚ´æÂý£¬±ÈÄÚ²¿¼Ä´æÆ÷¿ì C. ±ÈÄÚ´æ¿ì£¬±ÈÄÚ²¿¼Ä´æÆ÷Âý

48. CPU¶Ô´æ´¢Æ÷»òI/O¶Ë¿ÚÍê³ÉÒ»´Î¶Á/д²Ù×÷ËùÐèµÄʱ¼äΪһ¸ö__B___¡£

A. Ö¸ÁîÖÜÆÚ B. ×ÜÏßÖÜÆÚ C. ʱÖÓÖÜÆÚ 49. ÄÜʵÏÖÍâÉèºÍÄÚ´æÖ±½Ó½»»»Êý¾ÝµÄÊý¾Ý´«Ê䷽ʽÊÇ D

A. ²éѯ·½Ê½ B. ÎÞÌõ¼þ´«ËÍ·½Ê½ C. ÖжϷ½Ê½ D. DMA·½Ê½

50. ËùνI/O²Ù×÷£¬ÊÇÖ¸¶Ô ______A___ µÄ²Ù×÷¡£

A. I/O¶Ë¿Ú B. I/OÉ豸 C. A»òB 51. ÏÂÁд洢Æ÷ÄÇÖÖ´æÈ¡ËÙ¶È×î¿ì¡£D

A. Ó²ÅÌ B. DRAM C. ROM D.Cache 52. ÓÃÓÚ´®ÐÐͨÐŵĽӿÚоƬÊÇ D ¡£

A. 8255A (¿É±à³Ì²¢ÐнӿÚ) B. 8237A£¨DMA¿ØÖÆÆ÷£© C. 8259A£¨¿É±à³ÌÖжϿØÖÆÆ÷£© D. 8251A 53. ÏÂÃæÖ¸ÁîÖУ¬´íÎóµÄÊÇ________¡£

A. MOV AX,100 B. POPF

C. ADD OFFSET[BX][SI],DX D. DEC DI

54. 8086¶ÔÖжÏÇëÇóÏìÓ¦ÓÅÏȼ¶×î¸ßµÄÇëÇóÊÇ______¡£

A. NMI B. INTR C. ÄÚ²¿Èí¼þÖÐ¶Ï D. µ¥²½ÖжÏ

55. Íê³É½«BXÇåÁ㣬²¢Ê¹CFÇåÁ㣬ÏÂÃæÖ¸Áî²»ÄÜʵÏÖµÄÊÇ ¡£

A. SUB BX,BX

42

B. XOR BX,BX C. MOV BX,0 D. AND BX,0000H

56. ´ÓÓ²¼þ½Ç¶È¶øÑÔ£¬²ÉÓÃÓ²¼þ×îÉÙµÄÊý¾Ý´«ËÍ·½Ê½ÊÇ______D____¡£

A. DMA¿ØÖÆ B. ÖжϿØÖÆ C. ²éѯ´«ËÍ D. ÎÞÌõ¼þ´«ËÍ 57. RS-232C½Ó¿ÚµÄµçƽ·¶Î§Îª C ¡£

A. 0~+5V B. -5~+5V C. -15~+15V D. 0~+15V

58. ijһ²â¿ØÏµÍ³ÒªÊ¹ÓÃÒ»¸öÁ¬ÐøµÄ·½²¨Ðźţ¬Èç¹ûʹÓÃ8253¿É±à³Ì¶¨Ê±/¼ÆÊýÆ÷À´ÊµÏִ˹¦ÄÜ£¬Ôò8253Ó¦¹¤×÷ÔÚ D ¡£

A. ·½Ê½0 B. ·½Ê½1 C. ·½Ê½2 D. ·½Ê½3 E..·½Ê½4 F.·½Ê½5 59. °´Î¢»úϵͳÓë´æ´¢Æ÷µÄ¹ØÏµ£¬I/O¶Ë¿ÚµÄ±àÖ··½Ê½·ÖΪC

A. ÏßÐԺͷÇÏßÐÔ±àÖ· B. ¼¯ÖкͷÖÉ¢±àÖ· C. ͳһºÍ¶ÀÁ¢±àÖ· D. ÖØµþºÍ·ÇÖØµþ±àÖ·

60. Á½Ì¨PC»úͨ¹ýÆä´®ÐнӿÚÖ±½ÓͨÐÅʱ£¬Í¨³£Ö»ÐèҪʹÓÃ_____A___Èý¸ùÐÅ ºÅÏß¡£

A. TXD¡¢RXDºÍGND B. TXD¡¢/CTSºÍGND C. /DSR¡¢/CTSºÍGND D£®/DTR¡¢/RTSºÍGND

Èý¡¢ÅжÏÌ⣬ÔÚÕýÈ·µÄ»­ ¡°¡Ì¡±£¬´íÎóµÄ»­¡°¨w¡±

£¨ £©1. ·ë.ŵÒÀÂü¼ÆËã»úÔÚÓ²¼þÉÏÊÇÓÉÔËËãÆ÷¡¢¿ØÖÆÆ÷¡¢´æ´¢Æ÷¡¢ÊäÈëÉ豸ºÍÊä³öÉ豸Îå´ó²¿·Ö

×é³ÉµÄ¡£

43

£¨ £©2. ÔÚ80X86Ö÷´æÖУ¬Ò»¸ö×Ö½ÚÊý¾ÝÕ¼ÓÃÒ»¸ö´æ´¢µ¥Ôª£»Ò»¸ö×ÖÕ¼ÓÃÁ½¸öÏàÁڵĵ¥Ôª£¬×ÖµÄ

¸ß8λ´æ·ÅÔڸߵØÖ·µ¥Ôª£¬µÍ8λ´æ·ÅÔڵ͵ØÖ·µ¥Ôª¡£

£¨ £©3. SPµÄÄÚÈÝ¿ÉÒÔ²»Ö¸Ïò¶ÑÕ»µÄÕ»¶¥¡£

£¨ £©4. ij²â¿ØÏµÍ³ÓÃDAC0832¹¹³ÉÊý×Ö·ÖÅäÐͶà·ģÄâÊä³öͨµÀʱ£¬ÒªÇó¸ô·±ØÐëͬʱÊä³öÄ£

ÄâÁ¿¿ØÖÆÐźţ¬Ôò¸÷DAC0832Ó¦¹¤×÷ÓÚË«»º³å·½Ê½¡£

£¨ £©5. ¼ÆËã»úµÄÖ÷ƵÓú¸ß£¬¼ÆËã»úµÄËÙ¶ÈÓú¿ì¡£

£¨ £©6. 8259A¿ÉÒÔ±à³ÌʵÏÖijЩµÍÓÅÏȼ¶Öжϴò¶Ï¸ßÓÅÏȼ¶ÖжϵŤ×÷·½Ê½¡£

£¨ £©7. ÔÚÈýÖÖ»ù±¾µÄI/Oͬ²½¿ØÖÆ·½Ê½ÖУ¬ÒÔDMAʽ¿ØÖÆ×îºÃ£¬ÖжÏÇý¶¯Ê½´ÎÖ®£¬³ÌÐò²éѯʽ

×î²î¡£

£¨ £©8. DMA·½Ê½µÄI/O²Ù×÷Óë³ÌÐò²éѯʽºÍÖжϿØÖÆÊ½Ïà±È£¬ÓÃÓ²¼þ¿ØÖÆ´úÌæÁËÄÇÀïµÄÈí¼þ¿Ø

ÖÆ£¬ÇÒÎÞÐè¾­CPU´«Êý£¬Òò´ËÊý¾Ý´«ËÍËÙ¶ÈÃ÷ÏÔÌá¸ß¡£

£¨ £©9. ÔÚ΢ÐͼÆËã»úÖУ¬¶à²ÉÓÃSRAM´æ´¢Ð¾Æ¬¹¹³É¸ßËÙ»º³å´æ´¢Æ÷¡£

£¨ £©10. 8255A¹¤×÷ÓÚ·½Ê½2ʱ£¬A¿Ú¡¢B¿Ú¾ù×÷Ϊ˫ÏòÊý¾Ý´«ËͶ˿ڣ¬C¿Ú¸÷λ×÷ΪËüÃǵÄÓ¦´ð

¿ØÖÆÏß¡£

ËÄ¡¢¼ò´ðÌâ

1£®ÒÑÖªÔÚÖ¸ÁîÖ´ÐÐǰ£¬ÓÐDI=0300H£¬BX=0010H£¬CF=0£¬DS=2000H£¬SS=3000H£¬BP=0100H£¬SP=0020H£¬[DS£º310H]=0AAH¡£[DS£º311H]=55H¡£

(1)Ö´ÐÐÖ¸ÁîRCR WORD PTR[BX+DI]£¬1ºó£¬Ä¿µÄ²Ù×÷ÊýֵΪ____2AD5H_________ (2)Ö¸ÁîMOV AL£¬[BP+100H]µÄÔ´²Ù×÷ÊýÎïÀíµØÖ·Îª______30200H______________ (3)Ö¸ÁîPOP 300H[DI]µÄÔ´²Ù×÷ÊýÎïÀíµØÖ·Îª_______30020H_________________ 2£®Ä³Î¢»úϵͳµÄ´æ´¢ÈÝÁ¿Îª256K×Ö½Ú£¬Èô²ÉÓõ¥Æ¬ÈÝÁ¿Îª16Kx1λµÄSRAMоƬ£¬Ôò×é³É¸Ã´æ´¢ÏµÍ³¹²Ðè¸ÃÀàоƬ¶àÉÙ¸ö£¿Ã¿¸öоƬÐèÒª¶àÉÙ¸ùƬÄÚµØÖ·Ñ¡ÔñÏߣ¿Õû¸öϵͳ·ÖΪ¶àÉÙ¸öоƬ×飿 ´ð£º

¢Ù ËùÐèÒªµÄоƬÊý=256KB/16KBit=(256Kx8Bit)/(16Kx1Bit)=128 ¢Ú 16Kx1λ=214x1룬ËùÒÔ£¬Æ¬ÄÚµØÖ·Ñ¡ÔñÏßΪ£º14¸ù

¢Û ÿ8¸öоƬΪһ×é¹¹³É×Ö½Úµ¥Ôª£¬ËùÒÔ£¬Ó¦·ÖΪ£º128/8=16¸öоƬ×é

44

ÁªÏµ¿Í·þ£º779662525#qq.com(#Ìæ»»Îª@)