单片机复习题 网上（国外英文资料）.docVIP

单片机复习题 网上（国外英文资料） The diary of 2009-06-01 is one First, fill in the blanks 1.8051 MCU internal hardware structure includes:,,,, and as well as the parallel I/O port, serial port and interrupt control system, the clock circuit, a processor and other components, these components connected through. The stack of McS-51 is only set up, and the stack register sp is a register. The P0 ~ P4 of the McS-51 single chip is the I/O port, where the P0 and P2 ports are usually used to build the system, except for the input and output of the data The sum of the two. The timer/counter work mode 3 means that it will be split into two separate 8-bit counters. The other timer/counter is usually only available at this point. Assuming (SP) = 40H, (39H) = 30H, (40H) = 60H. Execute the following instructions: After POP DPH and POP DPL, the content of the DPTR is the content of SP. Second, the choice A/D converter for A McS-96 single chip is A () conversion device. A. 4 channel 8 b.8 channel 8 C. 8 channel 10 d. 8 channels 16 bits The stack area of the McS-51 unit should be set up in (). A. the low 128-byte unit of the data storage area B. the internal data storage area The high 128 byte unit d. program storage area in the data storage area The McS-51 single-chip computer timer works by means of the working method. A. eight b. eight c. 13 d. 16 When data is required from McS-51 SCM, the instructions are (). A.A.R.A.A. C.M OVX A 5, please judge whether the following instructions are in the wrong format. 1. The MUL R0R1 2. MOV A, @ R7 3. MOV A, # 3000 h MOVC @a + DPTR, A 5. LJMP # 1000 h Six, use simple instruction sequence to complete the following operation Please clear the outside ram20h-25h unit Please send the ROM3000 unit content to R7 Programming problem (20), known to the MCS - 51 single chip microcomputer system on chip RAM20H unit to store music an 8-bit unsigned number 7 ah, RAM the slice of the 8000 h for an 8-bit unsigned number 86 h, try programming to complete the above two uni