To provide a neural semi-conductor chip including a neuron unit which is composed of plural neuron circuits to which a signal is supplied by various kinds of buses, an additional OR function is executed between the whole corresponding first global result signals and the global output signals by a dot processing in an off-chip common communication bus inside a driver block.
PROBLEM TO BE SOLVED: To provide a neural semi-conductor chip including a neuron unit which is composed of plural neuron circuits to which a signal is supplied by various kinds of buses. SOLUTION: The respective neuron circuits adds a means for generating the local result signal of an 'ignition' type and the local output signals of distance or a category type in the respective buses. An OR circuit 12 executes OR concerning the whole corresponding local result signals and the local output signals and generates respective first global result signals and global output signals in the respective buses which are integrated to an on-chip common communication bus shared by the whole neuron circuits of a chip. Then, an additional OR function is executed between the whole corresponding first global result signals and the global output signals by a dot processing in an off-chip common communication bus inside a driver block in order to generate the second global result signals and the global output signals.