Patent ID: 7616519
Filing Date: 2009-11-10
Classification: G11C

Abstract:
1. A semiconductor integrated circuit device comprising: a single port memory including an internal memory and a first port adapted to input first data to be stored in said internal memory and to output a first state signal that indicates an end of a writing operation of said first data to said internal memory; and a multi port control circuit including a second port, into which second data is inputted from an outside of the semiconductor integrated circuit device, and a third port, into which third data is inputted from said outside of the semiconductor integrated circuit device, the multi port control circuit adapted to output said second data to said first port as said first data, and said third data to said first port as said first data, wherein said first state signal is inputted into said multi port control circuit, and wherein said multi port control circuit switches data output to said first port as said first data from said second data to said third data based on said first state signal.