摘要 |
<p>PURPOSE: To use a device in a system satisfying a high bit rate performance by adding a sequential serial access function to a MOS dynamic RAM. CONSTITUTION: A memory 5 has not only a serial port 2 but also a parallel port 6, and the port 6 is connected to a multiple address/data input/output bus 7 or a microcomputer 8. The memory 5 receives the address on the bus 7 to prescribe an address for the serial port 2 and prescribes also an address for memory read or write passing the parallel port 6. The memory 5 has a memory array 10 which consists of a matrix of memory cells and is divided in accordance with the size and form of a video display device 1 and the form of a selected memory. That is, processing is performed in the memory by the microprocessor, and the output is outputted from the memory through a serial register. Thus, a device suitable for a display device which has an improved resolution is obtained.</p> |