| 摘要 |
PROBLEM TO BE SOLVED: To surely detect that a soft error has occurred while preventing an increase in a circuit size. ! SOLUTION: A memory chip 20 has a redundant address latch circuit 270 which retains a redundant address, and a redundant address comparison circuit 250 which compares the redundant address retained by the redundant address latch circuit 270 with an access address. A logic chip 10 has a redundant address latch circuit 170 which retains a redundant address, and a redundant address comparison circuit 150 which compares the redundant address retained by the redundant address latch circuit 170 with an access address. The logic chip 10 also has a HIT information comparison circuit 140 which compares a comparison result of the redundant address comparison circuit 150 with a comparison result of the redundant address comparison circuit 250, and performs error detection. ! COPYRIGHT: (C)2014,JPO&INPIT |
