Abstract: An integrated circuit includes a main processing unit, a peripheral connection port for connecting a peripheral device, and an auxiliary processing unit configured to control the peripheral connection port and to perform controlling of interruption and transmission of data from the peripheral device connected to the peripheral connection port instead of the main processing unit. The main processing section and the peripheral connection portion are connected to each other with an inner bus. The main processing unit uses a memory resource provided in the auxiliary processing unit as a part of an inner memory space of the main processing unit.

Abstract: A reduction in circuit size and in power consumption is provided. A signal processor includes: processor elements 501, which are mapped by circuit reconfiguration; processor elements 502a and 502b, which are not mapped by circuit reconfiguration; a power voltage supply area 503; a power voltage cutoff area 504; a system control CPU 505; a configuration information storage memory 506; a configuration control signal decoder 507; a configuration control circuit 508; a configuration control circuit 509 for a power supply unit; a data memory 510; a global bus (high voltage side) 511; and a global bus switch (high voltage side) 512. The signal processor includes a function for circuit reconfiguration of the individual processor elements 501 in consonance with the contents of a signal process to be performed and a function for changing a voltage to be supplied to the processor elements 501.

Abstract: A reduction in circuit size and in power consumption is provided. A signal processor includes: processor elements 501, which are mapped by circuit reconfiguration; processor elements 502a and 502b, which are not mapped by circuit reconfiguration; a power voltage supply area 503; a power voltage cutoff area 504; a system control CPU 505; a configuration information storage memory 506; a configuration control signal decoder 507; a configuration control circuit 508; a configuration control circuit 509 for a power supply unit; a data memory 510; a global bus (high voltage side) 511; and a global bus switch (high voltage side) 512. The signal processor includes a function for circuit reconfiguration of the individual processor elements 501 in consonance with the contents of a signal process to be performed and a function for changing a voltage to be supplied to the processor elements 501.