KR20010092746A - 외부 장치로의 접근을 우선순위화하는 장치 및 방법 - Google Patents
외부 장치로의 접근을 우선순위화하는 장치 및 방법 Download PDFInfo
- Publication number
- KR20010092746A KR20010092746A KR1020017006149A KR20017006149A KR20010092746A KR 20010092746 A KR20010092746 A KR 20010092746A KR 1020017006149 A KR1020017006149 A KR 1020017006149A KR 20017006149 A KR20017006149 A KR 20017006149A KR 20010092746 A KR20010092746 A KR 20010092746A
- Authority
- KR
- South Korea
- Prior art keywords
- memory
- command
- data
- queue
- request
- Prior art date
Links
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
- G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
- G06F13/362—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control
-
- 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
- G06F13/1605—Handling requests for interconnection or transfer for access to memory bus based on arbitration
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0215—Addressing or allocation; Relocation with look ahead addressing means
-
- 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
- G06F13/1605—Handling requests for interconnection or transfer for access to memory bus based on arbitration
- G06F13/161—Handling requests for interconnection or transfer for access to memory bus based on arbitration with latency improvement
- G06F13/1621—Handling requests for interconnection or transfer for access to memory bus based on arbitration with latency improvement by maintaining request order
-
- 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
- G06F13/1605—Handling requests for interconnection or transfer for access to memory bus based on arbitration
- G06F13/161—Handling requests for interconnection or transfer for access to memory bus based on arbitration with latency improvement
- G06F13/1626—Handling requests for interconnection or transfer for access to memory bus based on arbitration with latency improvement by reordering requests
-
- 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
- G06F13/1605—Handling requests for interconnection or transfer for access to memory bus based on arbitration
- G06F13/1642—Handling requests for interconnection or transfer for access to memory bus based on arbitration with request queuing
Abstract
Description
새명령 | 닫힌페이지 | 열린페이지 | 판독 | 기록 | |
닫힌페이지 | 5Φ | ||||
열린페이지 | |||||
판독 | |||||
기록 |
뱅크 레지스터 요소 | 설명 |
뱅크 번호 | 뱅크 레지스터의 정보가 저장된 뱅크를 식별함 |
뱅크 상태 | 뱅크상태를 표시함"00" - 무효 엔트리"01" - 뱅크 카운터값이 0에 이를때까지 감소함"10" - 뱅크가 닫힘"11" - 뱅크 카운터값이 0에 이를때까지 감소함뱅크 카운터가 0보다 크면, 메모리의 모든뱅크로의 접근이 금지됨 |
뱅크 타이머 | 뱅크 카운터가 0보다 크면, 뱅크상태값에 따른메모리로의 접근이 금지됨 |
FLAG | CA9 | CA8 | CA7 | CA6 | CA5 | CA4 | CA3 | CA2 | CA1 | CA0 |
1 | ID8 | ID7 | ID6 | ID5 | ID4 | ID3 | ID2 | ID1 | ID0 | CMD5 |
0 | CMD4 | CMD3 | CMD2 | CMD1 | CMD0 | BNK2 | BNK1 | BNK0 | RW9 | RW8 |
0 | ROW7 | ROW6 | ROW5 | ROW4 | ROW3 | ROW2 | ROW1 | ROW0 | 0 | 0 |
0 | 0 | 0 | 0 | COL6 | COL5 | COL4 | COL3 | COL2 | COL1 | COL0 |
Claims (2)
- 외부 장치로의 접근의 우선순위화 장치로서,상기 장치는 요청 큐, 요청 큐 제어기 유닛, 응답 큐, 응답 큐 제어기 유닛을 포함하며,상기 요청 큐는 외부 장치의 임의 수의 장치 요청을 저장하도록 적절히 배열되고,상기 요청 큐 제어기 유닛은 저장된 요청을 페치하도록 적절히 배열되는 요청 큐에 연결되며,상기 응답 큐는 외부 장치로부터의 임의 수의 응답을 저장하도록 적절히 배열되고,상기 응답 큐 제어기 유닛은 저장된 임의 수의 요청을 페치하도록 적절히 배열되는 응답 큐에 연결되며, 이때 각각의 응답 및 그 관련 요청은, 원래의 요청이 발생하는 특정 그룹의 요청 장치를 표시하는 그룹 식별 번호를 상기 응답 및 요청과 연관시키며, 응답 큐 제어기 및 요청 큐 제어기 유닛은 저장된 요청 및 응답의 각각을 우선순위화하기 위해 그룹 우선순위 선택기 레지스터에 저장된 우선순위 번호를 이용하여, 높은 우선순위의 요청이나 응답이 낮은 우선순위의 요청이나 응답을 무시할 수 있는 것을 특징으로 하는 장치.
- 제 1 항에 있어서, 상기 장치는 지속 로크 카운터 레지스터를 추가로 포함하고, 지속 로크 조건이 방지되도록 높은 우선순위의 요청이나 응답이 낮은 우선순위의 요청이나 응답을 무시하는 상황에서만 상기 지속 로크 카운터 레지스터가 작동하도록 배열되는 것을 특징으로 하는 장치.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10893098P | 1998-11-16 | 1998-11-16 | |
US60/108,930 | 1998-11-16 | ||
US09/439,860 | 1999-11-12 | ||
US09/439,860 US6195724B1 (en) | 1998-11-16 | 1999-11-12 | Methods and apparatus for prioritization of access to external devices |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010092746A true KR20010092746A (ko) | 2001-10-26 |
KR100667384B1 KR100667384B1 (ko) | 2007-01-10 |
Family
ID=26806435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020017006149A KR100667384B1 (ko) | 1998-11-16 | 1999-11-15 | 공유 리소스(shared resource)로 접근의 우선순위화 제어기 장치 및 그 방법 |
Country Status (7)
Country | Link |
---|---|
US (2) | US6195724B1 (ko) |
JP (1) | JP4472186B2 (ko) |
KR (1) | KR100667384B1 (ko) |
CN (1) | CN1205553C (ko) |
DE (1) | DE19983747T1 (ko) |
GB (1) | GB2358942B (ko) |
WO (1) | WO2000029956A1 (ko) |
Cited By (1)
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KR20160112305A (ko) * | 2015-03-18 | 2016-09-28 | 삼성전자주식회사 | 공유 리소스 액세스 중재 방법 및 이를 수행하기 위한 공유 리소스 액세스 중재 장치 및 공유 리소스 액세스 중재 시스템 |
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-
1999
- 1999-11-12 US US09/439,860 patent/US6195724B1/en not_active Expired - Lifetime
- 1999-11-15 WO PCT/US1999/027017 patent/WO2000029956A1/en active IP Right Grant
- 1999-11-15 CN CNB998156558A patent/CN1205553C/zh not_active Expired - Fee Related
- 1999-11-15 GB GB0111920A patent/GB2358942B/en not_active Expired - Lifetime
- 1999-11-15 DE DE19983747T patent/DE19983747T1/de not_active Ceased
- 1999-11-15 KR KR1020017006149A patent/KR100667384B1/ko active IP Right Grant
- 1999-11-15 JP JP2000582897A patent/JP4472186B2/ja not_active Expired - Lifetime
-
2000
- 2000-11-27 US US09/723,750 patent/US6430642B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160112305A (ko) * | 2015-03-18 | 2016-09-28 | 삼성전자주식회사 | 공유 리소스 액세스 중재 방법 및 이를 수행하기 위한 공유 리소스 액세스 중재 장치 및 공유 리소스 액세스 중재 시스템 |
Also Published As
Publication number | Publication date |
---|---|
KR100667384B1 (ko) | 2007-01-10 |
GB0111920D0 (en) | 2001-07-04 |
US6430642B1 (en) | 2002-08-06 |
JP2002530742A (ja) | 2002-09-17 |
CN1348564A (zh) | 2002-05-08 |
JP4472186B2 (ja) | 2010-06-02 |
GB2358942B (en) | 2003-07-09 |
US6195724B1 (en) | 2001-02-27 |
WO2000029956A1 (en) | 2000-05-25 |
CN1205553C (zh) | 2005-06-08 |
GB2358942A (en) | 2001-08-08 |
DE19983747T1 (de) | 2002-01-03 |
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