MEMORY ACCESS CONTROL DEVICE, AND MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method using a memory chip without receiving the influence of connection failure between a logic chip and the memory chip.SOLUTION: A memory access control device includes: a bit position information storage part for storing bit position information indicating one or more bit positions in a predetermined length of bit string; a reading part that tries to read out, from a memory, a bit string with the larger number of bits than the number of bits in a range of a storage area designated by a logic address, in a predetermined length unit; and a bit string extraction part that extracts a bit at a bit position indicated in the bit position information stored in the bit position information storage part, from the bit string taken out from the memory through the trial of read-out performed by the reading part, in a predetermined length unit. Integrated circuits are classified into ones for high performance and ones for popular performance depending on a usable bandwidth (S3320).SELECTED DRAWING: Figure 33