| 摘要 |
PURPOSE:To reduce the amount of hardware, by providing a channel address versus line number converting memory which converts channel address information having lots of bit numbers corresponding to line number information having less number of bits. CONSTITUTION:The channel address information (b) outputted from a multiplex separation counter circuit 10 is converted into the line number information (c) with the channel address versus line number corresponding conversion memory 91, and the line number information (c) is all used for a write/readout address signal of a data buffer circuit 31. Thus, the state of the line is stored in a position of address designation with the line number information (c) outputted from the converting memory 91 with a line monitor circuit 41 and reported in a processing section 80 when any state change exists. |
