2024年1月12日发(作者：)

微机原理及应用(双语）知到章节测试答案智慧树2023年最新山东科技大学

第一章测试

1. What kind of device does the MCS-51 microcontroller belong to? ( )

参考答案:

8-bit device

2. The operation of taking a number from memory into the CPU is called ( ).

参考答案:

READ

3. The 8951 microcontroller contains （ ）

参考答案:

EEPROM

4. What is the highest address in a memory system with 16 data lines? （ ）

参考答案:

65535

5. What are the basic actions that a microprocessor can carry out?

参考答案:

Taking a number from memory (READ);Arithmetic

operations; Putting a number into memory (WRITE);Making decisions

about the program route (jumps and subroutine calls);Logical

operations (bit manipulation)

第二章测试

1. In internal RAM, only one of the four register banks is in used at any time

when the program is running. （ ）

参考答案:

对

2. When using an external crystal for the 8051 clock, what values of capacitors

should be connected to it? （ ）

参考答案:

30 pF

3. On the 8051 what is the storage size (in bits) of accumulator A? ( )

参考答案:

8 bit

4. Which port has alternate function pins? ( )

参考答案:

Port 3

5. Which type of memory organization is used by the MCS-51 microcontrollers?

参考答案:

Harvard

第三章测试

1. What is the jump range of instruction LJMP? （ ）

参考答案:

64KB

2. What is the addressing mode of the second operand in the instruction MOVX

A, @DPTR ? （ ）

参考答案:

Indirect

3. If MOV (direct) is used for address 87h which type of memory is accessed?

（ ）

参考答案:

SFRs

4. The Stack Pointer will be decremented when a PUSH operation is made? ( )

参考答案:

错

5. Which instruction will clear the low nibble of A if A = C5h?

参考答案:

ANL A, #0F0h

第四章测试

1. What is the jump range of instruction CJNE or DJNZ ? （ ）

参考答案:

256B

2. What is the address of the second operand in the instruction：MOVC A,

@A+DPTR ?

Assume DPTR=1000h, A=80h. （ ）

参考答案:

1080h

3. Which programming types does the assembly language belong to? （ ）

参考答案:

Linear

4. What are the basci program sturcture in assembly language? ( )

参考答案:

Subroutine structure

;Branching structure

;Sequential structure

;Loop structure

5. Which Pseudo-instruction can put bytes in ROM memory? ( )

参考答案:

DB

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第五章测试

1. How many interrupt sources are there in 8051 ? （ ）

参考答案:

5

2. The EA bit in IE register does not actually enable all interrupts, but allows

them to be enabled separately. （ ）

参考答案:

对

3. For 8051, each interrupt causes the program to jump directly to an address

at which an ISR is located. （ ）

参考答案:

对

4. In an ISR (Interrupt Service Routine), which of the following instructions

must be included? （ ）

参考答案:

Return from interrupt instruction

5. How many interrupts are enabled after running this instruction “MOV IE,

#05h”?

参考答案:

0

第六章测试

1. For timers, which mode produces an 8-bit auto-reload timer? （ ）

参考答案:

Mode 2

2. Which register can we use to set up the mode of operation of Timer 0? （ ）

参考答案:

TCON

3. For the serial port, which mode is an 8-bit UART? （ ）

参考答案:

Mode 1

4. Where is the parity bit in an RS232 packet? （ ）

参考答案:

After data bits

5. How many modes can we use in a timer/counter ?

参考答案:

4

第七章测试

1. Name the three types of bus which are used when external memory is

connected to the 8051.

( )

参考答案:

Address bus

;Control bus

;Data bus

2. When using external RAM, which port is used for the low address byte? （ ）

参考答案:

Port 0

3. If we need to expand an 8031 by adding 32Kbytes of code memory EPROM,

how many address lines should be connected between the 8031 and the

EPROM? （ ）

参考答案:

15

4. If an 8031 chip is connected to an external EPROM, Which line can generate a

signal to enable reading of data from the EPROM? （ ）

参考答案:

/PSEN

5. If the program is stored entirely in an external EPROM, what voltage must be

applied to the /EA PIN on the 8051? （ ）

参考答案:

0 volts

第八章测试

1. There are 8 analog input channels that be connected to the ADC0809. （ ）

参考答案:

对

2. How many bits are required to select which analog channel is active on the

ADC0809? （ ）

参考答案:

3

3. In order to use the DAC0832, an external operational amplifier must be

connected. （ ）

参考答案:

对

4. How many port pins would be used to connect a 6*4 matrix keypad to an

8051 (excluding the interrupt input)? （ ）

参考答案:

10

5. What are the common forms that the internal wiring of the 7-segment

display can take?( ）

参考答案:

Common anode;Common cathode

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第九章测试

1. In almost all cases, except completely trivial instances, the design of a

microcontroller-based system must be a top-down activity. This means that

one must look first at the broad picture and then refine it down to systems

and sub-systems in both hardware and software. （ ）

参考答案:

对

2. The lowest level of errors comprises those that result from incorrect use of

the assembly language, and these are known as syntax errors. （ ）

参考答案:

对

3. Which errors belong to syntax error of assembly language? ( )

参考答案:

Symbol not define

;Wrong representation of numbers

;

Misspelling of instructions

;Incorrect addressing modes

4. The basic steps of microcontroller system design are: Requirement analysis,

functional specification, design, implementation, system testing,

documentation, and installation. （ ）

参考答案:

对

5. The function of WDT(Watchdog Timer) is to do the syntax error detection.

（ ）

参考答案:

错