JP5703967B2 - メモリシステム、メモリ制御方法及びメモリ制御プログラム - Google Patents
メモリシステム、メモリ制御方法及びメモリ制御プログラム Download PDFInfo
- Publication number
- JP5703967B2 JP5703967B2 JP2011121340A JP2011121340A JP5703967B2 JP 5703967 B2 JP5703967 B2 JP 5703967B2 JP 2011121340 A JP2011121340 A JP 2011121340A JP 2011121340 A JP2011121340 A JP 2011121340A JP 5703967 B2 JP5703967 B2 JP 5703967B2
- Authority
- JP
- Japan
- Prior art keywords
- dimm
- memory
- jedec
- spd
- compliant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1668—Details of memory controller
- G06F13/1694—Configuration of memory controller to different memory types
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/02—Disposition of storage elements, e.g. in the form of a matrix array
- G11C5/04—Supports for storage elements, e.g. memory modules; Mounting or fixing of storage elements on such supports
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Memory System (AREA)
Description
Rawcard-B(1Rank ×8 SRAM)
Rawcard-C(1Rank ×16 SRAM)
Rawcard-D(2Rank ×8 stacked SRAM)
Rawcard-F(2Rank ×8 SRAM)
したがって、DDR3−SRAMの容量が1チップ毎に、1Gbまたは2Gb(1Gb/2Gb)であるものとすると、実現可能な1DIMMでの容量は、
Rawcard-A(2Rank ×16 SRAM)→1GB/2GB(デバイス8個)
Rawcard-B(1Rank ×8 SRAM)→512MB/1GB(デバイス8個)
Rawcard-C(1Rank ×16 SRAM)→512MB/1GB(デバイス4個)
Rawcard-D(2Rank ×8 stacked SRAM)→1GB/2GB(デバイス8個)
Rawcard-F(2Rank ×8 SRAM)→1GB/2GB(デバイス16個)
となる。なお、現在、32bitでのDDR3−SRAMのSO−DIMMの規定は存在していない。
2 プリント基板
3 メモリコントローラ
4 DIMMコネクタ
5 メモリ配線
10 DIMM
10a、10b、10c DIMM
11、22 SPD
Claims (7)
- JEDEC準拠DIMM及びJEDEC非準拠DIMMが着脱可能に装着されるDIMMコネクタ手段と、
前記DIMMコネクタ手段に装着されているDIMMがJEDEC準拠DIMMとJEDEC非準拠DIMMのいずれであるかのDIMMの種別を判別するDIMM種別判別手段と、
前記DIMMに搭載され該DIMMの構成情報及び搭載メモリチップの情報を格納するSPDに格納されている情報を読み取って、該SPDの情報及び前記DIMM種別判別手段の判別結果に基づいて該DIMMのアクセス制御を行うメモリ制御手段と、を備え、
前記メモリ制御手段は、前記DIMM種別判断手段による判別結果に応じて、前記SPDの設定値に不正があるかを判断し、その判断結果に応じて前記DIMMのアクセス制御を行うことを特徴とするメモリシステム。 - 前記メモリ制御手段は、前記DIMMがJEDEC非準拠DIMMであると判別された場合にのみ、前記SPDの設定値に不正があるかを判断することを特徴とする請求項1記載のメモリシステム。
- 前記JEDEC非準拠DIMMは、
少なくとも複数のRankを有しRank毎に容量の異なるメモリチップが搭載されているDIMMと、2つのメモリチップと終端抵抗を搭載して32bitで1RankとなるDIMMと、を含んでいることを特徴とする請求項1または請求項2記載のメモリシステム。 - 前記DIMM種別判別手段は、
前記SPD情報に基づいて前記DIMMの種別を判別することを特徴とする請求項1から請求項3のいずれかに記載のメモリシステム。 - 前記DIMM種別判別手段は、
前記DIMMの所定のピンに対して設定されている特定のピン状態に基づいて前記DIMMの種別を判別することを特徴とする請求項1から請求項4のいずれかに記載のメモリシステム。 - DIMMコネクタ手段に着脱可能に装着されているDIMMがJEDEC準拠DIMMとJEDEC非準拠DIMMのいずれであるかのDIMMの種別を判別するDIMM種別判別処理ステップと、
前記DIMMに搭載され該DIMMの構成情報及び搭載メモリチップの情報を格納するSPDに格納されている情報を読み取って、該SPDの情報及び前記DIMM種別判別処理ステップでの判別結果に基づいて該DIMMのアクセス制御を行うメモリ制御処理ステップと、を有し、
前記メモリ制御処理ステップにおいて、前記DIMM種別判断処理ステップでの判別結果に応じて、前記SPDの設定値に不正があるかを判断し、その判断結果に応じて前記DIMMのアクセス制御を行うことを特徴とするメモリ制御方法。 - コンピュータに、
DIMMコネクタ手段に着脱可能に装着されているDIMMがJEDEC準拠DIMMとJEDEC非準拠DIMMのいずれであるかのDIMMの種別を判別するDIMM種別判別処理と、
前記DIMMに搭載され該DIMMの構成情報及び搭載メモリチップの情報を格納するSPDに格納されている情報を読み取って、該SPDの情報及び前記DIMM種別判別処理での判別結果に基づいて該DIMMのアクセス制御を行うメモリ制御処理と、を実行させ、
前記メモリ制御処理において、前記DIMM種別判断処理での判別結果に応じて、前記SPDの設定値に不正があるかを判断し、その判断結果に応じて前記DIMMのアクセス制御を行うことを特徴とするメモリ制御プログラム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011121340A JP5703967B2 (ja) | 2011-05-31 | 2011-05-31 | メモリシステム、メモリ制御方法及びメモリ制御プログラム |
US13/467,306 US8938600B2 (en) | 2011-05-31 | 2012-05-09 | Memory system, memory control method, and recording medium storing memory control program |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011121340A JP5703967B2 (ja) | 2011-05-31 | 2011-05-31 | メモリシステム、メモリ制御方法及びメモリ制御プログラム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012248134A JP2012248134A (ja) | 2012-12-13 |
JP5703967B2 true JP5703967B2 (ja) | 2015-04-22 |
Family
ID=47262593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011121340A Expired - Fee Related JP5703967B2 (ja) | 2011-05-31 | 2011-05-31 | メモリシステム、メモリ制御方法及びメモリ制御プログラム |
Country Status (2)
Country | Link |
---|---|
US (1) | US8938600B2 (ja) |
JP (1) | JP5703967B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9196314B2 (en) | 2011-06-24 | 2015-11-24 | Inphi Corporation | Extended-height DIMM |
US10181124B2 (en) | 2013-05-30 | 2019-01-15 | Dell Products, L.P. | Verifying OEM components within an information handling system using original equipment manufacturer (OEM) identifier |
US9230137B2 (en) * | 2013-05-30 | 2016-01-05 | Dell Products, L.P. | Secure original equipment manufacturer (OEM) identifier for OEM devices |
JP6524618B2 (ja) * | 2013-09-09 | 2019-06-05 | 株式会社リコー | 電子機器、制御方法およびプログラム |
US10402324B2 (en) | 2013-10-31 | 2019-09-03 | Hewlett Packard Enterprise Development Lp | Memory access for busy memory by receiving data from cache during said busy period and verifying said data utilizing cache hit bit or cache miss bit |
US10620859B2 (en) * | 2016-09-30 | 2020-04-14 | Hewlett Packard Enterprise Development Lp | NVDIMM metadata |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5253357A (en) * | 1991-06-13 | 1993-10-12 | Hewlett-Packard Company | System for determining pluggable memory characteristics employing a status register to provide information in response to a preset field of an address |
JP3719633B2 (ja) | 1998-12-21 | 2005-11-24 | 株式会社リコー | メモリ装置 |
JP2001243114A (ja) | 2000-02-28 | 2001-09-07 | Nec Corp | メモリコントローラ回路 |
US6701418B2 (en) * | 2000-12-15 | 2004-03-02 | Texas Instruments Incorporated | Automatic detection and correction of relatively rearranged and/or inverted data and address signals to shared memory |
WO2002058069A2 (en) * | 2001-01-17 | 2002-07-25 | Honeywell International Inc. | Enhanced memory module architecture |
US7464225B2 (en) * | 2005-09-26 | 2008-12-09 | Rambus Inc. | Memory module including a plurality of integrated circuit memory devices and a plurality of buffer devices in a matrix topology |
EP2003568B1 (en) * | 2006-03-31 | 2012-02-22 | Fujitsu Limited | Memory device, control method for the same, control program for the same, memory card, circuit board and electronic equipment |
US8054676B2 (en) * | 2008-08-18 | 2011-11-08 | Advanced Micro Devices, Inc. | Memory system such as a dual-inline memory module (DIMM) and computer system using the memory system |
US8423724B2 (en) * | 2010-09-08 | 2013-04-16 | Smart Modular Technologies, Inc. | Dynamic back-up storage system with rapid restore and method of operation thereof |
-
2011
- 2011-05-31 JP JP2011121340A patent/JP5703967B2/ja not_active Expired - Fee Related
-
2012
- 2012-05-09 US US13/467,306 patent/US8938600B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2012248134A (ja) | 2012-12-13 |
US20120311249A1 (en) | 2012-12-06 |
US8938600B2 (en) | 2015-01-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5703967B2 (ja) | メモリシステム、メモリ制御方法及びメモリ制御プログラム | |
US7263019B2 (en) | Serial presence detect functionality on memory component | |
US9064560B2 (en) | Interface for storage device access over memory bus | |
US6683372B1 (en) | Memory expansion module with stacked memory packages and a serial storage unit | |
US8116144B2 (en) | Memory module having a memory device configurable to different data pin configurations | |
US6981089B2 (en) | Memory bus termination with memory unit having termination control | |
US7433992B2 (en) | Command controlling different operations in different chips | |
EP2579159B1 (en) | Memory system, memory device, and memory interface device | |
US9569144B2 (en) | DRAM with SDRAM interface, and hybrid flash memory module | |
US7864604B2 (en) | Multiple address outputs for programming the memory register set differently for different DRAM devices | |
US6446184B2 (en) | Address re-mapping for memory module using presence detect data | |
US20050044302A1 (en) | Non-standard dual in-line memory modules with more than two ranks of memory per module and multiple serial-presence-detect devices to simulate multiple modules | |
US20050036397A1 (en) | Detecting device and method for determining type and insertion of flash memory card | |
US20160139807A1 (en) | Write flow control for memory modules that include or interface with non-compliant memory technologies | |
CN104951412A (zh) | 一种通过内存总线访问的存储装置 | |
US20090040861A1 (en) | Method of Operating a Memory Apparatus, Memory Device and Memory Apparatus | |
US8159886B2 (en) | Memory device, control method for the same, control program for the same, memory card, circuit board and electronic equipment | |
US7197675B2 (en) | Method and apparatus for determining the write delay time of a memory utilizing the north bridge chipset as in charge of the works for checking the write delay time of the memory | |
JP5043360B2 (ja) | 所定のピン配列を有するメモリモジュール | |
CN112103265B (zh) | 主控芯片、pcb板以及电子设备 | |
US8639879B2 (en) | Sorting movable memory hierarchies in a computer system | |
KR100585158B1 (ko) | Ecc 메모리 모듈 | |
JPH1173764A (ja) | D−ramの種別判定方法 | |
US20220107908A1 (en) | Methods, devices and systems for high speed transactions with nonvolatile memory on a double data rate memory bus | |
KR100321840B1 (ko) | 메모리 모듈, 컴퓨터 시스템, 컴퓨터 시스템에서의 뱅크 메모리소자 사용 방법 및 지능형 메모리 모듈의 시스템 제어 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20140423 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20140430 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20141020 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20141118 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150107 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20150127 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150209 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 5703967 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
LAPS | Cancellation because of no payment of annual fees |