Patent ID: 6903983

Claim:
A semiconductor integrated circuit device which has a nonvolatile memory section having an automatic execution function for a data rewrite and a simultaneous execution function for a data read during automatic execution, comprising: a first memory cell array which has nonvolatile memory cells arrayed and corresponds to one bank; a second memory cell array which has nonvolatile memory cells arrayed and corresponds to the other bank different from said one bank; a plurality of first address transition signal generating circuits which detect transitions of input addresses when the transitions of the input addresses have occurred and generate a plurality of first address transition signals; a second address transition signal generating circuit which pre-detects an end of automatic execution of said one bank and generates a second address transition signal; and a read start trigger output circuit which outputs a read start trigger signal serving as a trigger for a start of a read on the basis of the first address transition signals and the second address transition signal.