| 摘要 |
PURPOSE:To use effectively address spaces of input/output ports by commanding the classification of a required variable element to input/output ports and inputting various kinds of variable element from the same addresses of input/output ports. CONSTITUTION:An output port of address 1 and an input port of address 1 are used as input/output ports for variable element input, and the classification of a variable element to be inputted is outputted as bit or code information to an output port 17. A selector 18 before the output port 17 selects designated one from variable element data 20, and selected data is inputted from an input port 19 and is processed and is outputted to designated one of outputs 14-16. Consequently, when data with an address is received, it is outputted to the output port 17, and the selector 18 selects one of variable elements 20 and outputs it to one input port 19. |
