READING AND WRITING METHOD AND READING AND WRITING INSTRUCTION PROCESSING METHOD FOR INFORMATION STORAGE DEVICE

摘要

PURPOSE: To improve operability by inhibiting an eject during an irreducible minimum period only and by reducing the period in which the eject is not effective. ;CONSTITUTION: When a host device 2 does not output an eject inhibit instruction and it is during writing instruction period, only erase, writing and verify operations inhibit an eject by an operation sequence. Therefore, command receive, data receive and seek operations allow an eject. Similarly, in the case of a reading instruction, only a reading operation inhibits an eject. Therefore, an eject is allowed during a command receive, a seek operation and data transmission. During these operations and at the start time of these operations, an MPU 12 gives an eject inhibit command against a control section 18 and negates an eject operation. At the time of the completion of each operation, the MPU 12 gives an eject release command to the section 18 and allows an eject operation. Thus, an eject is inhibited if there exists a danger of data destruction and the operability is improved.;COPYRIGHT: (C)1994,JPO&Japio