公开(公告)号：US20190033374A1

公开(公告)日：2019-01-31

申请号：US15704515

申请日：2017-09-14

Applicant: Seagate Technology LLC

Inventor： Rajesh Maruti Bhagwat ,  Jackson Ellis ,  Mark von Gnechten

IPC: G01R31/3185 ,  G01R31/28 ,  G06F9/30 ,  G06F12/14

Abstract: A method includes configuring a first set of blocks of a plurality of blocks of an IC chip as secure data blocks, and configuring a second set of blocks of the plurality of blocks as non-secure data blocks. The method further includes receiving a test mode entry request in the IC chip. In response to the IC chip receiving the test mode entry request, carrying out a data-initialization operation on the plurality of blocks independently of whether any blocks of the plurality of blocks are configured as the secure data blocks or the non-secure data blocks. An IC chip data output is disabled during the data-initialization operation.

公开(公告)号：US10481205B2

公开(公告)日：2019-11-19

申请号：US15704515

申请日：2017-09-14

Applicant: Seagate Technology LLC

Inventor： Rajesh Maruti Bhagwat ,  Jackson Ellis ,  Mark von Gnechten

IPC: G01R31/3185 ,  G01R31/28 ,  G06F12/14 ,  G06F9/30 ,  G06F21/72

Abstract: A method includes configuring a first set of blocks of a plurality of blocks of an IC chip as secure data blocks, and configuring a second set of blocks of the plurality of blocks as non-secure data blocks. The method further includes receiving a test mode entry request in the IC chip. In response to the IC chip receiving the test mode entry request, carrying out a data-initialization operation on the plurality of blocks independently of whether any blocks of the plurality of blocks are configured as the secure data blocks or the non-secure data blocks. An IC chip data output is disabled during the data-initialization operation.