| 摘要 |
PURPOSE:To obtain an output controller which controls both one-bit information and multi-bit parallel information, by providing a one-bit information storing method, multi-bit writing method, 1st and 2nd gate methods, and gate control method. CONSTITUTION:To store pieces of eight-bit parallel information D0 to D7 in eight one-bit information storing methods M0 to M7, switching signal LM is made logic ''1'' and output terminals C0 to C7 of decoder DEC1 are all made ''1''. As a result, 1st gates NA10 to NA17 and 2nd gates NA20 to NA27 close and multibit writing methods NA0 to NA7 open, so that pieces of information D0 to D7 will be inputted to storing methods M0 to M7. To store one-bit information, switching signal LM is made ''0''. Assuming that bit address signal BAD assigns storing method M1, only gate NA11 among 1st gates opens while others close and only NA21 among the 2nd gates closes while others open, so that one-bit information DA will be inputted to only storing method M1. |
