3.It utilizes national college entrance examination enroll systematic data output function to send information to the catalogue which the user appointed to lead, in the form of DBF file so as to realize enrolling on the net and new student register information management.
4.The MCU is composed of 8 bit instruction register,12 bit program counter,12 bit address selector,ALU that can carry out 16 bit addition,16 bit accumulator,a data selector that output is 8 bit from 16 bit input,8 bit data selector and a state machine.
5.The third row of the table represents synchronous parallel loading of the register and states that if S1 and S0 are both high, then, without regard to the serial input, the data entered at A is at output QA, data entered at B is at QB, and so forth, following a low-to-high clock transition.
