DATA PROCESSOR

PURPOSE:To make it possible to perform reception through a simple operation by constituting a data transmitting/receiving part, a memory controller, a buffer memory, and a picture data reproducing part integrally with a data processor. CONSTITUTION:Compressed picture data from a communication line is inputted to the data transmitting/receiving part 1 from an interface 5 or the interface 6. When the data transitting/receiving part 1 receives data, it sends immediately the data to the memory controller 2. The memory controller 2 confirms whether the picture data reproducing part 4 is executing data processing or not, and if it is not executing the data processing, it sends the data from the buffer memory 3 to the picture data reproducing part 4 in the order of the reception of the data transmitting/receiving part 1. Then, when the compressed data is sent, the picture data reproducing part 4 reproduces the picture data, and further, after generating the format for communication output of the picture data, and transmitting the picture data to the data transmitting/receiving part 1, it outputs the data from the interface 9 to a personal computer.