单片机复习题（国外英文资料）.docVIP

单片机复习题（国外英文资料） 1, () is a bit, sbit, which is added by the C51 The common anode code for 2 / digit 4 is (), the common cathode segment is (). In 99, 66 The 3 / CPU contains two basic parts: () and (). The arithmetic unit, the controller 4 / () is the command in the computer that performs an operation based on the intent of the person. instruction How to address the following instructions: MOVC A, @ A + DPTR 6 / for the timer/counter T2, the effect of the pulse triggered signal from the T2EX is applied (). It may be the initial value, the capture count, or simply the production of an external interrupt. 7 / the desire in the function founct working registers () is used in the third group, define the function that part should be (assuming that dont pass parameters, return an unsigned character data) : the unsigned char founct () using 3 A single chip microcomputer system has a vibration frequency of 12MHz, with T0 (or T1) in the mode 0 timing, the maximum time is (8192) mu s. 9 / timer/counter T0, T1 is characterized by pattern 0 (). 13 timers or counters 10 / define a bit variable called flag_run, which indicates the status of the device running, and the definition of flag_run is: An array of unsigned integers with a length of 50, defined in the external RAM data area. It is defined as: Unsigned int xdata array [50]; The format of the control register TCON for the 12 / timer/counter T0 and T1 is as follows, and the function of TR0 is (). ┌ ─ ─ ┬ ─ ─ ┬ ─ ─ ┬ ─ ─ ┬ ─ ─ ┬ ─ ─ ┬ ─ ─ ┬ ─ ─ ┐ │ TF1 │ TR1 │ TF0 │ TR0 │ IE1 │ IT1 │ IE0 │ IT0 │ T0 run control bits When you enter data using functions like getchar and scanf, you must initialize the (serial port) first. The way the integer data is stored in the 14/c51 is: A A, high byte in front, low in bytes; B, low byte before, high byte; C, low byte at low address, high byte at high address. 14 / serial asynchronous communication is a frame of data by the following several parts: the start bit (1), (2) data bits, parity bit,