| 摘要 |
PURPOSE:To effectively utilize the sace of an ROM, by selecting a program and a code table by designating a control terminal, so that they can be used for keyboards of multifunction and many kinds. CONSTITUTION:This device is composed of a switch matrix 11, a keyboard encoder 12, a machine kind setting encoder 13 and a buffer 14. The keyboard encoder 12 has a control program, code tables I -VIII and a control terminal, and its control terminal is controlled by the encoder 13 connected to the outside. The code tables I -VIII correspond to different kinds of machines, respectively, and these code tables are selected by depressing machine kind designating switches A-H. In this regard, it is also possible to increase the number of code tables by increasing the capacity of an ROM of the encoder 12. |
