Bus connection circuit, semiconductor device and operation method of bus connection circuit for making procedure for switching between a 1-cycle transfer and a 2-cycle transfer unnecessary

摘要

A bus connection circuit connects a bus master and a plurality of bus slaves. The bus connection circuit includes a mirror area access detecting circuit and a processing circuit. The mirror area access detecting circuit detects that the bus master accesses a mirror area of a first bus slave of the plurality of bus slaves, and output a detection signal based on a detection result. The processing circuit executes processing preset in correspondence to the detection result, to an area or data as an access object, based on the detection result.

主权项

1. A bus connection circuit which connects a bus master and a plurality of bus slaves, comprising:
a mirror area access detecting circuit configured to detect that said bus master accesses a mirror area of a first bus slave of said plurality of bus slaves, and output a detection signal based on a detection result; and a processing circuit configured to execute preset processing to an area or data as an access object, the preset processing corresponding to the detection result.