WO2010106738A1 - 再構成可能な論理回路 - Google Patents
再構成可能な論理回路 Download PDFInfo
- Publication number
- WO2010106738A1 WO2010106738A1 PCT/JP2010/001105 JP2010001105W WO2010106738A1 WO 2010106738 A1 WO2010106738 A1 WO 2010106738A1 JP 2010001105 W JP2010001105 W JP 2010001105W WO 2010106738 A1 WO2010106738 A1 WO 2010106738A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- logic
- extended
- block
- output
- logical
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
- H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
- H03K19/17736—Structural details of routing resources
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/57—Arithmetic logic units [ALU], i.e. arrangements or devices for performing two or more of the operations covered by groups G06F7/483 – G06F7/556 or for performing logical operations
- G06F7/575—Basic arithmetic logic units, i.e. devices selectable to perform either addition, subtraction or one of several logical operations, using, at least partially, the same circuitry
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
- H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
- H03K19/17724—Structural details of logic blocks
- H03K19/17728—Reconfigurable logic blocks, e.g. lookup tables
Definitions
- the present invention relates to a reconfigurable logic circuit.
- Reconfigurable logic circuit (reconfigurable array) is configured by arranging programmable cells in an array.
- Each programmable cell includes a logic block that performs various operations and a programmable routing resource that programmably connects the input and output of the logic block according to configuration data.
- FIG. 19 shows a logic block 200 of a reconfigurable logic circuit disclosed in Patent Document 1.
- the logic block disclosed in Patent Document 1 has a configuration in which the outputs 221A and 221B of the pre-logics 220A and 220B are connected to the argument inputs A and B of the full adder 230, respectively.
- CI is a carry input (231)
- CO is a carry output (232)
- S is an addition output (233).
- the pre-logic 220 (the pre-logics 220A and 220B are collectively referred to as the pre-logic 220) inputs the pre-logic inputs 210A and 210B.
- the prefix logic 220 is a block that can perform various logical operations. In the case of a relatively small-scale logic operation in which the number of inputs is not so large, a logic circuit is realized by one logic block 200 by combining the functions of the two pre-logics 220A and 220B and the full adder 230. Can do.
- one front logic 220B of each logic block 200_i (i is an integer) is set to output a fixed logic value 0 or 1.
- FIG. 21 becomes a circuit equivalent to FIG. This is because when a fixed logical value 0 is given to one input of the full adder 230, the carry output CO outputs a logical product of the remaining two inputs, and a fixed logical value 1 is input to one input of the full adder 230. This is because the carry output CO outputs the logical sum of the remaining two inputs.
- a circuit in which a plurality of pre-logics 220 are cascade-connected with logical products or logical sums as shown in FIG. 22 can be configured.
- the prefix logic 220B is used as a fixed logic value generation circuit, and therefore, only the prefix logic 220A of the two prefix logics can be used for the operation.
- an object of the present invention is to effectively use the front logic constituting the logic block.
- a reconfigurable logic circuit includes a full adder, two pre-logics that perform a plurality of logical operations based on configuration data, and an extended logic block that can perform one or more types of logical operations.
- One input selected from a plurality of signals including a fixed logic value based on the configuration data is input to the carry input of the full adder, and the expansion logic of another logic block is output according to the output of the expansion logic block.
- the block generates an output signal.
- the reconfigurable logic circuit according to the present invention makes it possible to effectively use the pre-logic constituting the logic block.
- FIG. 1 is a diagram illustrating a reconfigurable logic circuit according to a first embodiment
- 1 is a diagram showing a programmable cell that constitutes a reconfigurable logic circuit according to a first embodiment
- FIG. 3 is a diagram illustrating a register block configuring the programmable cell according to the first embodiment.
- FIG. 6 is a diagram illustrating another configuration example of a programmable cell configuring the reconfigurable logic circuit according to the first embodiment.
- FIG. 3 is a diagram illustrating a logic block configuring the programmable cell according to the first embodiment.
- FIG. 3 is a diagram showing a front block constituting the logic block according to the first embodiment. It is a correspondence table
- FIG. 3 is a diagram illustrating a full adder constituting the logic block according to the first embodiment. It is a correspondence table of the input of a full adder and a logic function.
- FIG. 3 is a diagram illustrating an extended logic block configuring the logic block according to the first embodiment. It is a figure which shows the case where a some logic block is couple
- FIG. 12 is a diagram illustrating an example of realizing a multi-input logical operation in the circuit illustrated in FIG. 11. It is a figure which shows the equivalent circuit of the circuit shown in FIG. It is a figure which shows another structural example of an extended logic block.
- FIG. 15 is a correspondence table between inputs and logical functions of the extended logical block shown in FIG. 14.
- FIG. 15 is a correspondence table between inputs and logical functions of the extended logical block shown in FIG. 14.
- FIG. 17 is a correspondence table between inputs and logical functions of the extended logical block shown in FIG. 16. It is a figure which shows the logic block which comprises the programmable cell concerning Embodiment 2.
- FIG. An example of a logic block sequence provided with a carry propagation path not passing through an extended logic block is shown. It is a figure which shows the logic block which comprises the reconfigurable logic circuit concerning a background art. It is the figure which cascade-connected several logic blocks concerning background art by a carry. It is a figure which shows the example which implement
- FIG. 1 is a diagram illustrating a reconfigurable logic circuit (also referred to as a reconfigurable array) according to the present embodiment.
- 1_i_j is a programmable cell, and i and j are integers representing the coordinates of the position of the cell. The size of the array may be arbitrary.
- Each programmable cell is connected by a horizontal wiring 2_i_jh and a vertical wiring 2_i_jv.
- FIG. 2 is a diagram showing a programmable cell constituting the reconfigurable logic circuit according to the present embodiment.
- the programmable cell 1 includes a logic block 100 that performs various operations, register blocks 140_1 and 140_2 connected to outputs OUT1 and OUT2, respectively, and a programmable switch block 130.
- the programmable switch block 130 is connected between the outputs 70_1 and 70_2 of the register blocks 140_1 and 140_2, the input 120 of the logic block 100, and the wirings 2_i_jh, 2_i_ (j-1) h, 2_i_jv, and 2_ (i-1) _jv. Connect programmably.
- the register block 140 (the register blocks 140A and 140B are collectively referred to as a register block 140) includes a multiplexer 4 in which an output 70 is selected based on the configuration memory 5 and a register 3, as shown in FIG. It is.
- the register block 140 can select the input 71 of the register block 140 or the input 71 via the register 3 as the output 70 according to the configuration data held in the configuration memory 5.
- FIG. 4 is a diagram showing another configuration example of the programmable cell constituting the reconfigurable logic circuit according to the present embodiment. Unlike the example shown in FIG. 2, one of the two outputs OUT 1 and OUT 2 of the logic block 100 is selected by the multiplexer 4, and the selected signal 71 is used as the input 71 of the register block 140. Which one of OUT1 and OUT2 is selected is determined by the contents of the configuration memory 5.
- FIG. 5 is a diagram showing a logic block constituting the programmable cell according to the present embodiment.
- the logic block 100 includes a full adder 30, two pre-logics 20A and 20B, and an extended logic block 60.
- the outputs 21A and 21B of the pre-logics 20A and 20B are connected to the argument inputs A and B of the full adder 30, respectively.
- the carry output 32 of the full adder 30 is connected to one input C of the extended logic block 60. .
- the output 62 of the extended logic block 60 and the output 33 of the full adder 30 correspond to the outputs OUT1 and OUT2 of the logic block 100 in FIG.
- the input 61 of the extended logic block 60, the inputs 10A and 10B of the pre-logics 20A and 20B, and the carry input 31 of the full adder 30 correspond to the input IN (120) of the logic block 100 in FIG. .
- FIG. 6 is a diagram showing a front block constituting the logic block according to the present embodiment.
- the pre-logic 20 (the pre-logics 20A and 20B are collectively referred to as the pre-logic 20) is obtained by connecting an exclusive logic gate 6 to the output of the multiplexer 4, and changes the signal applied to the input 10. Thus, various logical operations can be performed.
- FIG. 7 is a table showing input signals input to the input terminals I0, I1, I2, and I3 of the front logic and logic functions corresponding to the input signals.
- 0 means that a fixed logic value 0 is given to the terminal
- 1 means that a fixed logic value 1 is given to the terminal.
- X means that the terminal does not affect the logic function (don't care).
- an input terminal name is written, it means that the input terminal is directly input to a logic function.
- the table shown in FIG. 7 includes all 2-input logic functions.
- the pre-logic 20 shown in FIG. 6 can perform various logical operations according to the input signals input to the input terminals I0, I1, I2, and I3.
- FIG. 8 is a diagram showing the full adder 30 constituting the logic block according to the present embodiment.
- FIG. 9 is a correspondence table between the inputs (A, B, CI) of the full adder shown in FIG. 8 and logic functions. As shown in the table of FIG. 9, when a fixed logical value 0 is given to any one of the input terminals A, B, and CI, the carry output CO and the addition output S are exclusive of the logical product of the remaining inputs, respectively. A logical sum is output. Further, when a fixed logical value 1 is given to any one of the input terminals A, B, and CI, a logical sum of the remaining inputs and an exclusive negative logical sum are output to the carry output CO and the addition output S, respectively. . As described above, the full adder 30 can perform various logical operations according to the input signals applied to the input terminals A, B, and CI.
- the pre-logic 20 and the full adder 30 can perform various logical operations, various logical operation results obtained by combining them can be output to the outputs 32 and 33 of the logic block 100 of FIG. I can do it.
- the switch block 130 shown in FIG. 2 or FIG. 1 is given or a signal on any other wiring is given. How to give such an input signal is set by configuration data held in a configuration memory included in the switch block 130.
- the pre-logic 20 shown in FIG. 5 may be any circuit as long as it can program a plurality of logical operations.
- a look-up table may be used as the prefix logic 20.
- the N-input look-up table incorporates 2 N configuration memories, and can implement an arbitrary N-input logical operation.
- FIG. 5 shows an example of the pre-logic 20 having four input terminals, but the number of inputs of the pre-logic 20 may be arbitrary.
- the two pre-logics included in the logic block 100 may have different structures or different numbers of inputs.
- FIG. 10 is a diagram showing an extended logic block constituting the logic block according to the present embodiment.
- the extended logical block 60 selects either the logical product 7 or the logical sum 8 of the inputs D and C by the multiplexer 4 according to the contents of the configuration memory 5 and outputs it to E.
- E contents of the configuration memory 5
- FIG. 5 since one input C of the extended logical block 60 is connected to the carry output 32, a logical product or logical sum of the signal and the input 61 from another logic block is generated and output 62 is obtained. It can be.
- FIG. 11 is a diagram showing a case where a plurality of logic blocks are combined.
- the output 62 of the extended logic block of the logic block 100_i (i is an integer) is transmitted to the switch block 130_ (i + 1) associated with the logic block 100_ (i + 1) through the wiring 63_i. Furthermore, it is connected to the input 61 of the extended logic block 60 of the logic block 100_ (i + 1) via the multiplexer 4 included in the logic block 100_ (i + 1).
- the multiplexer 4 programmably selects any one of the wiring 63_i, the wiring group 2, and the configuration memory 5 from the preceding logic block and outputs the selected one to the extended logic block 60.
- the configuration memory 5 is used when a fixed logical value 0 or 1 is generated.
- which signal the multiplexer 4 selects is determined by the contents of another configuration memory (not shown in the figure).
- the wiring 63_i may pass through several switch blocks 130_i.
- FIG. 12 is a diagram showing an example of realizing a multi-input logic operation in the circuit shown in FIG.
- each multiplexer 4 is configured to select the signal of the wiring 63_i.
- the carry input 31 is configured to be given a fixed logical value 0 or 1. That is, the fixed logic value 0 is input to the carry input 31 of the logic blocks 100_1 and 100_2, and the fixed logic value 1 is input to the carry input 31 of the logic block 100_3.
- a circuit in which the logical sum or logical product of the outputs 21A and 21B of the two pre-logics 20A and 20B of each of the logic blocks 100_1 to 100_3 is coupled via the extended logic block 60 can be obtained.
- the output 62 of the extended logic block 60 of the highest logic block 100_3 is the logical operation result of all circuits.
- the circuit of FIG. 13 can realize a large-scale logical operation with multiple inputs.
- one of the two pre-logics 220A and 220B of each logic block 200 is used for the generation of the fixed logic value. Only one prefix logic could be used for logical operations (see FIG. 21).
- the logic circuit according to the present embodiment by providing the extended logic block 60, it is possible to use both the two pre-logics 20A and 20B included in each logic block 100 for the logical operation. Therefore, it is possible to realize an equivalent logical operation with half the number of logic blocks, that is, the number of programmable cells compared to the logic circuit according to the background art.
- the extended logic block 60 has a simple structure and has a very small circuit area compared to other parts of the programmable cell 1. For this reason, the increase in the circuit area of the programmable cell 1 due to the addition of the extended logic block 60 is negligible. As described above, by using the embodiment of the present invention, the same logical operation can be realized in an area nearly half that of the logic circuit according to the background art.
- FIG. 14 is a diagram showing another configuration example of the extended logical block 60.
- the configuration memory 5 is connected to the 0-side input of the multiplexer 4 (the input selected when the signal 0 is given to the control terminal C).
- a logical operation according to the output value of the configuration memory 5 can be performed as shown in FIG.
- FIG. 15 includes a logical sum in which the C terminal is logically inverted, but does not include a logical sum without logical inversion.
- the output of the arithmetic unit connected to the C terminal can generate both an output that is logically inverted and an output that is not logically inverted.
- the extended logical block 60 of FIG. 14 can also realize a logical sum substantially without logical inversion.
- the output 32 to the C terminal of the extended logic block 60 includes both an output that is logically inverted and an output that is not logically inverted. Can be generated.
- FIG. 16 is a diagram illustrating still another configuration example of the extended logical block 60.
- the configuration memory 5 is connected to one side input of the multiplexer 4 (input selected when the signal 1 is given to the control terminal C).
- a logical operation according to the output value of the configuration memory 5 can be performed as shown in FIG.
- this example of the extended logical block 60 can also be used substantially as a logical product and a logical sum.
- the extended logic block 60 shown in FIGS. 14 and 16 has substantially the same function as the extended logic block shown in FIG. 10, and can be configured with fewer parts than the extended logic block shown in FIG. For this reason, the area of the circuit can be reduced, and the processing speed can be further increased.
- a two-input lookup table may be used as the extended logic block 60.
- the area and the operation speed are inferior to the above-described example, there is an advantage that more logic functions can be realized.
- FIG. 5 shows an example of the simplest two-input extended logical block 60
- the number of inputs of the extended logical block 60 may be more than two.
- an equivalent logic function can be realized with a smaller area than the circuit according to the background art.
- the reason is that two pre-logics in the logic block can be used for a logical operation by combining the logic blocks with an extended logic block.
- Embodiment 2 a second embodiment of the present invention will be described.
- the carry output of the full adder is connected to the carry input of another full adder without going through the extended logic block.
- the rest of the configuration is the same as that of the reconfigurable logic circuit according to the first embodiment, and a duplicate description is omitted.
- FIG. 5 when the extended logical block 60 is programmed as a logical product and given a fixed logical value 1 to the input 61, the extended logical block 60 can output the carry output 32 of the full adder 30 to the output 62 as it is. When this output 62 is connected to the carry input 31 of the adjacent logic block 100, a ripple carry is formed.
- a multi-bit adder can be realized by connecting a large number of logic blocks in this way.
- FIG. 18 shows a circuit configuration of a reconfigurable logic circuit according to this embodiment that avoids this problem.
- FIG. 18 is an example in which means for connecting the carry output 32 of the logic block 100_i to the carry input 31 of the logic block 100_ (i + 1) without passing through the extended logic block 60 is provided (i is an integer).
- the multiplexer 4_2 in each logic block 100 transmits a carry output 32 of another logic block to the carry input 31 or transmits a fixed logic value from the configuration memory 5_3 according to the contents of the configuration memory 5_2. To do.
- the carry output 32 of the logic block 100 is connected to the multiplexer 4_2 of another logic block without passing through the extended logic block 60, high-speed carry signal propagation can be realized.
- the multiplexer 4_2 having two inputs has been described as an example in FIG. 18, the multiplexer 4_2 may have more inputs, and other signals may be added as input signals.
- the present invention can be applied to a reconfigurable logic circuit.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Logic Circuits (AREA)
Abstract
Description
以下、図面を参照して本発明の実施の形態について説明する。
図1は、本実施の形態にかかる再構成可能な論理回路(再構成可能アレイともいう)を示す図である。1_i_jはプログラマブルセルであり、iとjはセルの位置の座標を表す整数である。アレイのサイズは任意であってよい。また、それぞれのプログラマブルセルは水平配線2_i_jhと垂直配線2_i_jvで接続されている。
また、図5には、4つの入力端子を有する前置ロジック20の例を示したが、前置ロジック20の入力数は任意であってもよい。また、ロジックブロック100に含まれる二つの前置ロジックはそれぞれが異なる構造であってもよいし、異なる入力数であってもよい。
次に本発明の実施の形態2について説明する。本実施の形態にかかる再構成可能な論理回路では、全加算器のキャリ出力が拡張論理ブロックを介することなく他の全加算器のキャリ入力に接続されている。これ以外は実施の形態1にかかる再構成可能な論理回路と同様であるので重複した説明は省略する。
2_i_jh 水平配線
2_i_jv 垂直配線
3 レジスタ
4、4_i マルチプレクサ
5、5_i コンフィギュレーションメモリ
6、6_i 排他的論理和
7 論理積
8 論理和
10、10A、10B 前置ロジックの入力
20、20A、20B 前置ロジック
21、21A、21B 前置ロジックの出力
30 全加算器
31 全加算器のキャリ入力
32 全加算器のキャリ出力
33 全加算器の加算出力
60 拡張論理ブロック
61 拡張論理ブロックの入力
62 拡張論理ブロックの出力
63_i 拡張論理ブロックの出力を他のロジックブロックに接続する配線
100、100_i ロジックブロック
120 ロジックブロックの入力
130、130_i スイッチブロック
140、140_i レジスタブロック
Claims (10)
- 全加算器と、コンフィギュレーションデータに基づき複数の論理演算を行う2つの前置ロジックと、1種類以上の論理演算が可能な拡張論理ブロックと、を備える複数のロジックブロックを有し、
前記2つの前置ロジックの出力は、各々、前記全加算器の2つの引数入力に接続され、
前記全加算器のキャリ出力は前記拡張論理ブロックに接続され、前記全加算器のキャリ入力には、前記コンフィギュレーションデータに基づき固定論理値を含む複数の信号から選択された一つが入力され、前記拡張論理ブロックの出力に応じて次段のロジックブロックの拡張論理ブロックが出力信号を生成する、再構成可能な論理回路。 - 前記前置ロジックはマルチプレクサと排他的論理和ゲートを含む、請求項1に記載の再構成可能な論理回路。
- 前記前置ロジックは複数の入力を有するルックアップテーブルである、請求項1に記載の再構成可能な論理回路。
- 前記複数の信号は他の前記全加算器のキャリ出力を含む、請求項1乃至3のいずれか一項に記載の再構成可能な論理回路。
- 前記拡張論理ブロックは、前記コンフィギュレーションデータに応じて二種類以上の論理演算を行うことができる、請求項1乃至4のいずれか一項に記載の再構成可能な論理回路。
- 前記拡張論理ブロックは、一方に前段の拡張論理ブロックの出力を入力し、他方に前記全加算器の前記キャリ出力を入力し、論理積演算または一方の入力もしくは出力を反転した論理積演算を行うことができる、請求項1乃至5のいずれか一項に記載の再構成可能な論理回路。
- 前記拡張論理ブロックは、少なくとも論理和演算、または一方の入力もしくは出力を反転した論理和演算を行うことができる、請求項1乃至6のいずれか一項に記載の再構成可能な論理回路。
- 前記拡張論理ブロックは論理積ゲートと論理和ゲートとマルチプレクサとコンフィギュレーションメモリとを含み、前記マルチプレクサは前記コンフィギュレーションメモリの内容に応じて前記論理積ゲートと前記論理和ゲートのいずれかの出力を選択して出力する、請求項1乃至7のいずれか一項に記載の再構成可能な論理回路。
- 前記拡張論理ブロックはマルチプレクサとコンフィギュレーションメモリを含み、前記マルチプレクサの一方の入力に前記コンフィギュレーションメモリが接続されている、請求項1乃至7のいずれか一項に記載の再構成可能な論理回路。
- 前記拡張論理ブロックは少なくとも2つの入力を有するルックアップテーブルである、請求項1乃至7のいずれか一項に記載の再構成可能な論理回路。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011504726A JP5360194B2 (ja) | 2009-03-18 | 2010-02-19 | 再構成可能な論理回路 |
US13/138,643 US8390321B2 (en) | 2009-03-18 | 2010-02-19 | Reconfigurable logical circuit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009065741 | 2009-03-18 | ||
JP2009-065741 | 2009-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010106738A1 true WO2010106738A1 (ja) | 2010-09-23 |
Family
ID=42739405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/001105 WO2010106738A1 (ja) | 2009-03-18 | 2010-02-19 | 再構成可能な論理回路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8390321B2 (ja) |
JP (1) | JP5360194B2 (ja) |
WO (1) | WO2010106738A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6046319B1 (ja) * | 2013-09-12 | 2016-12-14 | クゥアルコム・インコーポレイテッドQualcomm Incorporated | 再構成可能命令セルアレイのシリアル構成 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11099894B2 (en) | 2016-09-28 | 2021-08-24 | Amazon Technologies, Inc. | Intermediate host integrated circuit between virtual machine instance and customer programmable logic |
US10338135B2 (en) | 2016-09-28 | 2019-07-02 | Amazon Technologies, Inc. | Extracting debug information from FPGAs in multi-tenant environments |
US10162921B2 (en) | 2016-09-29 | 2018-12-25 | Amazon Technologies, Inc. | Logic repository service |
US10250572B2 (en) | 2016-09-29 | 2019-04-02 | Amazon Technologies, Inc. | Logic repository service using encrypted configuration data |
US10282330B2 (en) * | 2016-09-29 | 2019-05-07 | Amazon Technologies, Inc. | Configurable logic platform with multiple reconfigurable regions |
US10642492B2 (en) | 2016-09-30 | 2020-05-05 | Amazon Technologies, Inc. | Controlling access to previously-stored logic in a reconfigurable logic device |
US11115293B2 (en) | 2016-11-17 | 2021-09-07 | Amazon Technologies, Inc. | Networked programmable logic service provider |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11122096A (ja) * | 1997-10-15 | 1999-04-30 | Nec Corp | プログラマブル機能ブロック |
JP2003084967A (ja) * | 2001-06-25 | 2003-03-20 | Nec Corp | 機能ブロック |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7656190B2 (en) * | 2003-12-24 | 2010-02-02 | Tier Logic, Inc | Incrementer based on carry chain compression |
US7167022B1 (en) * | 2004-03-25 | 2007-01-23 | Altera Corporation | Omnibus logic element including look up table based logic elements |
US7447726B2 (en) * | 2004-06-03 | 2008-11-04 | Arm Limited | Polynomial and integer multiplication |
US20050275427A1 (en) * | 2004-06-10 | 2005-12-15 | Man Wang | Field programmable gate array logic unit and its cluster |
US7330052B2 (en) * | 2005-09-22 | 2008-02-12 | Altera Corporation | Area efficient fractureable logic elements |
-
2010
- 2010-02-19 WO PCT/JP2010/001105 patent/WO2010106738A1/ja active Application Filing
- 2010-02-19 US US13/138,643 patent/US8390321B2/en active Active
- 2010-02-19 JP JP2011504726A patent/JP5360194B2/ja active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11122096A (ja) * | 1997-10-15 | 1999-04-30 | Nec Corp | プログラマブル機能ブロック |
JP2003084967A (ja) * | 2001-06-25 | 2003-03-20 | Nec Corp | 機能ブロック |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6046319B1 (ja) * | 2013-09-12 | 2016-12-14 | クゥアルコム・インコーポレイテッドQualcomm Incorporated | 再構成可能命令セルアレイのシリアル構成 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2010106738A1 (ja) | 2012-09-20 |
JP5360194B2 (ja) | 2013-12-04 |
US20120007633A1 (en) | 2012-01-12 |
US8390321B2 (en) | 2013-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5360194B2 (ja) | 再構成可能な論理回路 | |
US9747110B2 (en) | Pipelined cascaded digital signal processing structures and methods | |
US7971172B1 (en) | IC that efficiently replicates a function to save logic and routing resources | |
US7953956B2 (en) | Reconfigurable circuit with a limitation on connection and method of determining functions of logic circuits in the reconfigurable circuit | |
EP2645574B1 (en) | Integrated circuits with multi-stage logic regions | |
US7358761B1 (en) | Versatile multiplexer-structures in programmable logic using serial chaining and novel selection schemes | |
US6747480B1 (en) | Programmable logic devices with bidirect ional cascades | |
US20040070422A1 (en) | Programmable logic devices having enhanced cascade functions to provide increased flexibility | |
CN101571796A (zh) | 可配置的混合加法器电路 | |
US10715144B2 (en) | Logic circuits with augmented arithmetic densities | |
US20060109027A1 (en) | Programmable logic cell | |
US6154052A (en) | Combined tristate/carry logic mechanism | |
US7818361B1 (en) | Method and apparatus for performing two's complement multiplication | |
JP2012044618A (ja) | プログラマブル論理回路装置およびその回路決定方法 | |
JP2006011825A (ja) | 再構成可能演算装置および半導体装置 | |
KR20180116117A (ko) | 프로그래밍가능 게이트 어레이에 대한 로직 블록 아키텍처 | |
JP4755033B2 (ja) | 半導体集積回路 | |
US7765249B1 (en) | Use of hybrid interconnect/logic circuits for multiplication | |
WO2016090599A1 (zh) | 一种可扩展可配置的逻辑元件和fpga器件 | |
JP3887622B2 (ja) | データ処理装置 | |
US6879184B1 (en) | Programmable logic device architecture based on arrays of LUT-based Boolean terms | |
US7336099B1 (en) | Multiplexer including addition element | |
Iqbal et al. | Reconfigurable computing technology used for modern scientific applications | |
JP2013514025A (ja) | 交差相互接続トポロジを再構成可能な論理セルの相互接続配列及び集積回路 | |
US20120280710A1 (en) | Reuse of constants between arithmetic logic units and look-up-tables |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10753235 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011504726 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13138643 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10753235 Country of ref document: EP Kind code of ref document: A1 |