JPS56153436A - Storage device of received data for coupling of electronic computer - Google Patents

Abstract

PURPOSE:To read out data with the relative addresses from a processor without hampering the bus use right of the processor and enhance the processing efficiency of the processor by storing received data into a memory without using any common bus. CONSTITUTION:The rise of the strobe signal SB from a terminal device is detected with a strobe signal rise detecting circuit 12. From a control circuit 13, the latch request signal LT is supplied to a received data register 11. In the register 11, the channel number CH and input data DT are latched. The channel number output CN from the register 11 is applied to the 1st address conversion circuit 14 and circuit 13, and the received data OD are applied to an RAM17. A circulating counter 15 is controlled by the circuit 13 to output the change-over signal to set a selector 16 to the write side from the counter 15 and the write address of the RAM17 is determined by the selector 16, so that the data OD are written in the prescribed area of the RAM17. The data are read out from the RAM17 at the address determined by the 2nd address conversion circuit 18.