Invention Grant
- Patent Title: RAM memory device selectively protectable with ECC
- Patent Title (中): RAM存储器件可选择性地利用ECC保护
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Application No.: US13192241Application Date: 2011-07-27
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Publication No.: US08566670B2Publication Date: 2013-10-22
- Inventor: Sergio Bacchin , Andre Roger , Charles Aubenas
- Applicant: Sergio Bacchin , Andre Roger , Charles Aubenas
- Applicant Address: IT Agrate Brianza (MI) FR Grenoble
- Assignee: STMicroelectronics S.r.l.,STMicroelectronics (Grenoble) SAS
- Current Assignee: STMicroelectronics S.r.l.,STMicroelectronics (Grenoble) SAS
- Current Assignee Address: IT Agrate Brianza (MI) FR Grenoble
- Agency: Wolf, Greenfield & Sacks, P.C.
- Main IPC: G11C29/00
- IPC: G11C29/00

Abstract:
An SRAM memory device including a plurality of memory cells arranged in a plurality of rows and a plurality of columns; each row of memory cells is adapted to store a RAM word; the RAM word includes a corresponding data word, a corresponding ECC word to be used for error detection and correction purposes and a corresponding applicative word to be used during debugging operations. The SRAM memory device further includes a configurable port adapted to receive a RAM word and to program corresponding memory cells of a selected row based on the received RAM word during a writing access of the SRAM memory device. The SRAM memory device further includes a memory controller unit including circuitry for selectively configuring the configurable port in one among a plurality of modes. The plurality of modes includes a first mode, wherein the configurable port is configured in such a way to disable the programming of the data word and of the corresponding ECC word of the received RAM word and at the same time enable the programming of the applicative word of the received RAM word during the writing access. The plurality of modes includes a second mode, wherein the configurable port is configured in such a way to disable the programming of the applicative word of the received RAM word and at the same time enable the programming of the data word and of the corresponding ECC word of the received RAM word during the writing access.
Public/Granted literature
- US20120030540A1 RAM MEMORY DEVICE SELECTIVELY PROTECTABLE WITH ECC Public/Granted day:2012-02-02
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