Invention Grant
- Patent Title: Power-aware memory self-test unit
- Patent Title (中): 电源感知存储器自检单元
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Application No.: US14502458Application Date: 2014-09-30
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Publication No.: US09589672B2Publication Date: 2017-03-07
- Inventor: Dragos F. Botea
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Main IPC: G11C29/38
- IPC: G11C29/38 ; G11C29/26

Abstract:
Techniques are disclosed relating to testing logic in integrated circuits based on power being received by the integrated circuit. In one embodiment, an integrated circuit includes a memory and a self-test unit. The self-test unit is configured to receive an indication that identifies a memory block as being in a low-power state and to determine whether to disregard test data read from the one or more memory banks. In some embodiments, the self-test unit may be configured to mask a portion of test result related to the test data that the self-test unit has determined to disregard. The self-test unit may include an error validation logic configured to determine a validity of test data received from a memory based on a power activation status (e.g., whether the memory is powered on or off) associated with the memory.
Public/Granted literature
- US20160093400A1 POWER-AWARE MEMORY SELF-TEST UNIT Public/Granted day:2016-03-31
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