西交《微机原理与接口技术》在线作业（国外英文资料）.docVIP

西交《微机原理与接口技术》在线作业（国外英文资料） Microcomputer principle and interface technology online work Exam time: 100 test time: Single topic selection Multiple choice (40 questions, 80 points.) The 8086CPU is used by the M/control line for memory access, or I/O access, when the CPU performs the INAL, DX instruction, the signal line is () level. A. high B. low C. ECL D. CMOS Full marks: 2 8086/8088 instruction OUT80H, AL means () A. send 80 h to AL B. give the 80H content to AL C. give ALs content to port 80H D. send AL content to 80H memory unit Full marks: 2 An I/O address is called a (). A. interface B. port C. peripherals D. chip Full marks: 2 The entry address of the interrupt command INT17H is placed in the four storage units that began with the interrupt to the scale address (). A. 00017 h B. 00068 h C. 0005 ch D. 0005 eh Full marks: 2 In normal EOI mode, the interrupt end command is one of the () A. IRR B. the ISR C. IMR D. program status word Full marks: 2 When the IF = 0, 8088/8086CPU does not respond () to interrupt the request. A. INTN B. INTR C. NMI D. INTO Full marks: 2 Which of the following signals is valid for the READY signal on 8088CPU? (a) A. rise along the B. high level C. falling edge D. low level Full marks: 2 The higher the baud rate of serial communication, the faster the serial transfer data () A. the slower The faster the B. Its not about the baud rate D. is determined by the CPU speed Full marks: 2 There are two types of work patterns in the 8086, which is characterized by (). A. the CPU provides all the control signals B. by programming C. does not require 8286 transceivers You need the bus controller 8288 Full marks: 2 When transmitting data, the longest CPU time transfer is () A. the query B. the interrupt C. the DMA D. IOP Full marks: 2 In the following statement, the wrong thing is () A. A command cycle is A bus cycle B. A clock cycle is also called a T state C. A basic bus cycle contains four T states D. execute a command period for an instruction