Invention Grant
- Patent Title: Access enablement security circuit
- Patent Title (中): 访问启用安全电路
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Application No.: US14013561Application Date: 2013-08-29
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Publication No.: US09436844B2Publication Date: 2016-09-06
- Inventor: Michael Love , Walker Robb , Avdhesh Chhodavdia , Paul Paternoster
- Applicant: Microsoft Corporation
- Applicant Address: US WA Redmond
- Assignee: Microsoft Technology Licensing, LLC
- Current Assignee: Microsoft Technology Licensing, LLC
- Current Assignee Address: US WA Redmond
- Agent Gregg Wisdom; Judy Yee; Micky Minhas
- Main IPC: G06F21/71
- IPC: G06F21/71 ; G06F21/74 ; G06F21/75 ; G06F21/57 ; G06F21/62 ; G06F21/44

Abstract:
A system-on-chip (SoC) is provided that includes a centralized access enablement circuit for controlling access to a plurality of security features for multiple hardware modules of the system. Progressive security states corresponding to different stages in a chip's design, manufacture and delivery are utilized to enable different access control settings for security features as a part moves from design to end-use. The access enablement circuit for a SoC implementing different security states provides individual access control settings for security features in the different security states. One-time programmable memory and register controls are provided in one embodiment that allow different access control settings for an individual security feature in the same or different security states of the system.
Public/Granted literature
- US20150067771A1 Access Enablement Security Circuit Public/Granted day:2015-03-05
Information query