Multi-port memory device providing protection signal
US7539825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2006 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Jun 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/4096
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory system includes a first external device, a second external device, and a multi-port memory device connected to the first and second external devices. The multi-port memory system includes: a first port and a second port connected to the first and second external devices, respectively, a first bank group having at least one memory bank, the first bank group configured to be accessed by the first external device through the first data port; a second bank group having at least one memory bank, the second bank group configured to be accessed by the second external device through the second data port; a third bank group having at least one memory bank, wherein the third bank group is configured to be selectively accessed by the first external device through the first data port or the second external device through the second data port. The multi-port memory system may prevent data collisions which occur when two ports simultaneously attempt to access the same memory bank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.