| 摘要 |
PURPOSE:To make a high-speed processing possible in a simple hardware constitution by using a RAM as a delay element and providing a latch circuit in the output side of this RAM and performing the data read/write during one-time RAM address assingnement. CONSTITUTION:A digital filter is constituted by two blocks of operation part 1 and control part 2, and input date 90 is applied to control part 2, and input ready signal 100 is supplied to operation part 1. Operation part 1 of this constitution is provided with RAM 11 used as a delay element to give a constitution where data is read and written by R/W signal of RAM 11 during one-time assignment of address signal 110 from control part 1 after inputting data 90, and read data from RAM 11 is latched in latch circuit 12, which stores data temporarily, by RAM output of latch signal 120. Then, data 90 and the output of latch cirucit 12 are subjected to operation processing in operation part 2, and output data 160 and output signal 140 are outputted from operation output latch circuit 20 and control part 2. |
