Invention Application
- Patent Title: AUTHENTICATED SIGNALS FOR WRITE PROTECTION
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Application No.: US17633246Application Date: 2019-10-10
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Publication No.: US20220277797A1Publication Date: 2022-09-01
- Inventor: Kai-Chun Tai , Super Liao , Thong Thai
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Spring
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Spring
- International Application: PCT/US2019/055597 WO 20191010
- Main IPC: G11C16/22
- IPC: G11C16/22 ; G11C16/10 ; G11C16/32 ; H03K19/20

Abstract:
An electronic device comprises circuitry to generate and authenticate a first write protect (WP) signal; a controller to write data to a memory, the controller to generate a second WP signal; and a logic gate coupled to the circuitry and the controller. The logic gate is to receive the first and second WP signals; generate a third WP signal based on the first and second WP signals; and assert the third WP signal to the memory to control a write enable state of the memory.
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