SIGNAL INFORMATION SCANNING SYSTEM

摘要

PURPOSE:To make a control system possible to scan signal information without ineffective processings, by using a first in first out memory (FIFO) in the input part of signal information and transmitting the output ready signal of the FIFO as an interrupt signal to the control system. CONSTITUTION:A write signal of input signal information 101 is transmitted to an FIFO300 through a signal line 102. Input signal information 101 for which the write signal is transmitted through the signal line 102 is stored in the FIFO300. When data inputted to the FIFO300 appears in the output of the FIFO300, data is transmitted to a format converting circuit 400 through a signal line 301, and the output ready signal of the FIFO300 is transmitted to the control system omitted in the figure through an interrupt signal line 402, and the control system starts scanning input signal information 101 when receiving the interrupt signal through the interrupt signal line 302.