| 摘要 |
<p>PURPOSE:To write in the output data to an ROM with different bit constitution as the bit constitution of output data, by arbitrarily controlling the memory section and each signal selection section, according to the bit constitution of ROM describing the output data. CONSTITUTION:The data of hexadecimal code input at the input reception converter 1 is converted into a binary code, the data in 8-bit converted is separated into the upper rank and lower rank 4-bit, the upper rank bit data is transmitted to the multiplexer 2 via the data line D2, and the lower rank bit is stored in the 1st memory device 3 via the data line D1. Further, the multiplexer 2 is controlled with the control signal C1 from the controller 7, and the upper rank bit data is stored in the 2nd memory device 4. The address in this case is determined with the address signal of the address line ADL, the selective instruction of the devices 3, 4 is made with the control signals C3, C4 from the device 7, and the write-in/readout to the devices 3, 4 are made with the control signal C2. Further, the output of the devices 3, 4 is written in the ROM write-in section 6 with the control of the device 7.</p> |
