JPH09508227A - Pciバス・コンピュータのための使用可/使用不可拡張romを有する追加ボード - Google Patents
Pciバス・コンピュータのための使用可/使用不可拡張romを有する追加ボードInfo
- Publication number
- JPH09508227A JPH09508227A JP8535148A JP53514896A JPH09508227A JP H09508227 A JPH09508227 A JP H09508227A JP 8535148 A JP8535148 A JP 8535148A JP 53514896 A JP53514896 A JP 53514896A JP H09508227 A JPH09508227 A JP H09508227A
- Authority
- JP
- Japan
- Prior art keywords
- pci
- bus
- expansion rom
- register
- rom
- 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.)
- Granted
Links
Classifications
-
- 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
- G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
- G06F12/0646—Configuration or reconfiguration
- G06F12/0684—Configuration or reconfiguration with feedback, e.g. presence or absence of unit detected by addressing, overflow detection
-
- 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
- G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Bus Control (AREA)
- Multi Processors (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.PCIコンピュータ・システムにおいて使用するための追加ボードにして、 第1バスと、 前記第1バスに結合され、所望のタスクを達成するために所定の機能を遂行す るためのサブアセンブリ手段と、 前記第1バスに結合され、前記第1バスに接続されていないプロセッサによっ て実行されるべきコードを持った拡張ROMを含む不揮発性記憶手段と、 前記第1バスに結合されたオンボード・マイクロプロセッサと、 前記第1バス及び第2バスに相互接続し、前記オンボード・マイクロプロセッ サによりアクセス可能な少なくとも1つのビットを持った少なくとも1つの制御 レジスタを含むPCIバス・インターフェース・チップと、 前記第1バスに接続されていないプロセッサによってアクセス可能なPCI拡 張ROMベース・アドレス・レジスタと、 前記少なくとも1つのビットの論理的状態に応答し、所定のビット・パターン が前記PCI拡張ROMベース・アドレス・レジスタから出力されることを可能 にする論理手段と、 を含み、 前記所定のビットは前記第1バスに接続されていないプロ セッサに対する拡張ROMが存在しないことの表示であることを特徴とする追加 ボード。 2.前記第1バスに接続されていないプロセッサはPCIコンピュータ・システ ムに設けられたPCIプロセッサであることを特徴とする請求の範囲第1項に記 載の追加ボード。 3.前記サブアセンブリ手段は前記PCIシステムをLANに接続する通信コン トローラの所望のタスクを達成するために所定の機能を遂行することを特徴とす る請求の範囲第1項又は第2項に記載の追加ボード。 4.前記LANはイーサネット、トークン・リング、FDDI、又はATMを含 むことを特徴とする請求の範囲第3項に記載の追加ボード。 5.前記サブアセンブリ手段は装置コントローラの所望のタスクを達成するため に所定の機能を遂行することを特徴とする請求の範囲第1項又は第2項に記載の 追加ボード。 6.前記装置コントローラはディスプレイ、マルチメディア、ディスク・サブア センブリ、又はコプロセッサ・サブシステムを制御することを特徴とする請求の 範囲第5項に記載の追加ボード。 7.前記拡張ROMは前記不揮発性記憶装置の2kバイトから16kバイトまで を占めることを特徴とする請求の範囲第1項に記載の追加ボード。 8.前記第2バスはPCIバスを含むことを特徴とする請求の範囲第1項に記載 の追加ボード。 9.前記論理手段は論理的OR回路を含むことを含むことを特徴とする請求の範 囲第1項に記載の追加ボード。 10.PCI拡張ROMベース・アドレス・レジスタに結合された入力を有する マルチフルクサ回路手段(MUX)と、 前記PCI拡張ROMベース・アドレス・レジスタにおける他の入力に接続さ れ、前記所定のビット・パターンを供給するための手段と、 前記マルチプレクサ回路手段の出力を前記PCIバスに相互接続するPCIア ドレス/データ・マルチプレクサ/デマルチプレクサ(MUX/DEMUX)と 、 を更に含むことを特徴とする請求の範囲第8項に記載の追加ボード。 11.前記マルチプレクサ回路手段の出力及び前記PCIアドレス/データMU X/DEMUXの出力に接続された拡張ROMデコード論理手段を更に含み、 前記拡張ROMデコード論理手段は前記マルチプレクサ回路手段及び前記PC Iアドレス/データMUX/DEMUXを監視し、前記マルチプレクサ回路手段 におけるアドレスが前記PCIアドレス/データMUX/DEMUXから出力さ れたアドレスに一致する場合、前記PCI拡張ROMの読取り又は書込みを実行 することを特徴とする請求の範囲第10項に記載の追加ボード。 12.前記所定のビット・パターンはすべて論理的0を含むことを特徴とする請 求の範囲第9項に記載の追加ボード。 13.前記追加ボードにおけるピン及び前記論理的OR回路に対する入力を相互 接続する導体手段を更に含むことを特徴とする請求の範囲第10項に記載の追加 ボード。 14.PCIコンピュータのPCIバスに追加ボードを結合するためのインター フェース・サブシステムにして、 前記追加ボードにおける拡張ROMが使用不可能にされるべき場合、第1状態 にセットされるべき少なくとも1つのビットを有する少なくとも1つの制御レジ スタと、 前記PCIコンピュータによって発生された第1の所定ビット・パターンを受 け取り及び記憶するためのレジスタ手段と、 第2の所定ビット・パターンを発生するための手段と、 制御信号の状態に応答して前記第1の所定ビット・パターン又は前記第2の所 定ビット・パターンを選択するための選択回路手段と、 前記少なくとも1つのビットの状態を監視し、前記少なくとも1つのビットが 第1の所定状態にセットされる場合、前記制御信号を第1の電気的状態にセット するための論理的回路手段と、 を含み、 前記選択回路手段は前記第2の所定ビット・パターンを選択し、前記第2の所 定ビット・パターンを前記PCIコンピュータに送ること、及び 前記PCIコンピュータは前記第2の所定ビット・パター ンを調べ、前記第2の所定ビット・パターンが第1の所定値にセットされている 場合には前記追加ボードにおける拡張ROMの不存在を表すこと を特徴とするインターフェース・サブシステム。 15.前記第1の所定状態は論理的「1」を含むことを特徴とする請求の範囲第 14項に記載のインターフェース・サブシステム。 16.前記第1の所定値は論理的「0」を含むことを特徴とする請求の範囲第1 5項に記載のインターフェース・サブシステム。 17.前記少なくとも1つのビットが第2の所定状態にセットされる場合、前記 制御信号を第2の電気的状態にセットするための手段を更に含み、 前記選択回路は前記第1の所定ビット・パターンを選択し、前記第1の所定ビ ット・パターンを前記PCIコンピュータに送ること、及び 前記PCIコンピュータは前記第1の所定ビット・パターンを調べ、前記第1 の所定ビット・パターンが第2の所定値にセットされている場合、前記追加ボー ドにおける拡張ROMの存在を表すこと を特徴とする請求の範囲第14項に記載のインターフェース・サブシステム。 18.前記第2の所定値は論理的「1」を含むことを特徴とする請求の範囲第1 7項に記載のインターフェース・サブシ ステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/447,022 | 1995-05-22 | ||
US08/447,022 US5608876A (en) | 1995-05-22 | 1995-05-22 | Add-in board with enable-disable expansion ROM for PCI bus computers |
PCT/EP1996/001858 WO1996037842A1 (en) | 1995-05-22 | 1996-05-03 | Add-in board with enable/disable expansion rom for pci bus computers |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09508227A true JPH09508227A (ja) | 1997-08-19 |
JP3364495B2 JP3364495B2 (ja) | 2003-01-08 |
Family
ID=23774695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53514896A Expired - Fee Related JP3364495B2 (ja) | 1995-05-22 | 1996-05-03 | 追加ボード |
Country Status (8)
Country | Link |
---|---|
US (1) | US5608876A (ja) |
EP (1) | EP0827609B1 (ja) |
JP (1) | JP3364495B2 (ja) |
KR (1) | KR100262677B1 (ja) |
CN (1) | CN1085864C (ja) |
DE (1) | DE69602091D1 (ja) |
PL (2) | PL182189B1 (ja) |
WO (1) | WO1996037842A1 (ja) |
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-
1995
- 1995-05-22 US US08/447,022 patent/US5608876A/en not_active Expired - Lifetime
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1996
- 1996-05-03 PL PL96323387A patent/PL182189B1/pl not_active IP Right Cessation
- 1996-05-03 DE DE69602091T patent/DE69602091D1/de not_active Expired - Lifetime
- 1996-05-03 PL PL96347697A patent/PL183127B1/pl not_active IP Right Cessation
- 1996-05-03 CN CN96194070A patent/CN1085864C/zh not_active Expired - Lifetime
- 1996-05-03 EP EP96919664A patent/EP0827609B1/en not_active Expired - Lifetime
- 1996-05-03 JP JP53514896A patent/JP3364495B2/ja not_active Expired - Fee Related
- 1996-05-03 WO PCT/EP1996/001858 patent/WO1996037842A1/en active IP Right Grant
- 1996-05-03 KR KR1019970707252A patent/KR100262677B1/ko not_active IP Right Cessation
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PL323387A1 (en) | 1998-03-30 |
JP3364495B2 (ja) | 2003-01-08 |
KR19980703852A (ko) | 1998-12-05 |
CN1185218A (zh) | 1998-06-17 |
EP0827609A1 (en) | 1998-03-11 |
CN1085864C (zh) | 2002-05-29 |
WO1996037842A1 (en) | 1996-11-28 |
DE69602091D1 (de) | 1999-05-20 |
KR100262677B1 (ko) | 2000-08-01 |
PL182189B1 (pl) | 2001-11-30 |
PL183127B1 (pl) | 2002-05-31 |
EP0827609B1 (en) | 1999-04-14 |
US5608876A (en) | 1997-03-04 |
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