Data processing apparatus

A data processing apparatus, comprising:

• a reconfigurable circuit capable of reconfigurating partially a circuit configuration:
• and
• a reconfiguration controlling unit that controls a reconfiguration of the circuit configuration of the reconfigurable circuit;
• wherein the reconfiguration controlling unit reconfigurates a plurality of partial circuits, which constitute one pipeline and are reconfigurated simultaneously on the reconfigurable circuit, on the reconfigurable circuit in sequence from a head partial circuit of the pipeline, and starts sequentially the reconfigurated partial circuits from a head,
• the plurality of partial circuits include first and second partial circuits which are reconfigured on the reconfigurable circuit in sequence
• the second partial circuit is reconfigured after the first partial circuit is reconfigured, and
• the second partial circuit is reconfigure while the first partial circuit is started.