公开(公告)号：US20130138877A1

公开(公告)日：2013-05-30

申请号：US13754505

申请日：2013-01-30

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

IPC分类号： G11C7/10 ,  G06F12/08

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.

摘要翻译： 在片上系统（SOC）中提供分布式直接存储器访问（DMA）方法，装置和系统。 DMA控制器单元被分配到各种需要直接存储器访问的功能模块。 功能模块与直接存储器访问发生的系统总线接口。 将期望直接存储器访问的全局缓冲存储器耦合到系统总线。 总线仲裁器用于仲裁哪些功能模块可以访问系统总线来执行直接存储器访问。 一旦由总线仲裁器选择功能模块来访问系统总线，它就可以建立与全局缓冲存储器的DMA程序。

公开(公告)号：US07970961B2

公开(公告)日：2011-06-28

申请号：US12268604

申请日：2008-11-11

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

IPC分类号： G06F13/28 ,  G06F12/00 ,  G06F13/36 ,  G06F15/00

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.

摘要翻译： 在片上系统（SOC）中提供分布式直接存储器访问（DMA）方法，装置和系统。 DMA控制器单元被分配到各种需要直接存储器访问的功能模块。 功能模块与直接存储器访问发生的系统总线接口。 将期望直接存储器访问的全局缓冲存储器耦合到系统总线。 总线仲裁器用于仲裁哪些功能模块可以访问系统总线来执行直接存储器访问。 一旦由总线仲裁器选择功能模块来访问系统总线，就可以建立与全局缓冲存储器的DMA程序。

公开(公告)号：US20110320672A1

公开(公告)日：2011-12-29

申请号：US13170493

申请日：2011-06-28

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

IPC分类号： G06F13/28

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.

摘要翻译： 在片上系统（SOC）中提供分布式直接存储器访问（DMA）方法，装置和系统。 DMA控制器单元被分配到各种需要直接存储器访问的功能模块。 功能模块与直接存储器访问发生的系统总线接口。 将期望直接存储器访问的全局缓冲存储器耦合到系统总线。 总线仲裁器用于仲裁哪些功能模块可以访问系统总线来执行直接存储器访问。 一旦由总线仲裁器选择功能模块来访问系统总线，就可以建立与全局缓冲存储器的DMA程序。

公开(公告)号：US07155541B2

公开(公告)日：2006-12-26

申请号：US11036827

申请日：2005-01-14

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

IPC分类号： G06F13/28 ,  G06F3/00

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A direct memory access (DMA) descriptor table to control DMA of information in a memory is disclosed. The DMA descriptor table includes one or more DMA descriptor lists stored in the memory. Each DMA descriptor lists may include one or more pointers and information regarding the type of data being directly memory accessed. The pointers may point to a starting address in the memory from which to directly memory access data, prior state information, or program code from and to the memory.

摘要翻译： 公开了一种用于控制存储器中的信息的DMA的直接存储器访问（DMA）描述符表。 DMA描述符表包括存储在存储器中的一个或多个DMA描述符列表。 每个DMA描述符列表可以包括一个或多个指针和关于直接存储器访问的数据类型的信息。 指针可以指向存储器中的起始地址，以直接从存储器存储访问数据，先前状态信息或程序代码。

公开(公告)号：US06874039B2

公开(公告)日：2005-03-29

申请号：US09949461

申请日：2001-09-07

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

IPC分类号： G06F13/28

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.

摘要翻译： 在片上系统（SOC）中提供分布式直接存储器访问（DMA）方法，装置和系统。 DMA控制器单元被分配到各种需要直接存储器访问的功能模块。 功能模块与直接存储器访问发生的系统总线接口。 将期望直接存储器访问的全局缓冲存储器耦合到系统总线。 总线仲裁器用于仲裁哪些功能模块可以访问系统总线来执行直接存储器访问。 一旦由总线仲裁器选择功能模块来访问系统总线，就可以建立与全局缓冲存储器的DMA程序。

公开(公告)号：US08386665B2

公开(公告)日：2013-02-26

申请号：US13170493

申请日：2011-06-28

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

IPC分类号： G06F13/28 ,  G06F12/00 ,  G06F13/36 ,  G06F15/00

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.

公开(公告)号：US20090070513A1

公开(公告)日：2009-03-12

申请号：US12268604

申请日：2008-11-11

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

IPC分类号： G06F13/28 ,  G06F13/36

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.

摘要翻译： 在片上系统（SOC）中提供分布式直接存储器访问（DMA）方法，装置和系统。 DMA控制器单元被分配到各种需要直接存储器访问的功能模块。 功能模块与直接存储器访问发生的系统总线接口。 将期望直接存储器访问的全局缓冲存储器耦合到系统总线。 总线仲裁器用于仲裁哪些功能模块可以访问系统总线来执行直接存储器访问。 一旦功能模块由总线仲裁器选择以访问系统总线，就可以建立与全局缓冲存储器的DMA程序。

公开(公告)号：US07464197B2

公开(公告)日：2008-12-09

申请号：US11036828

申请日：2005-01-14

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle F. Philhower, III ,  Ruchir Shah

IPC分类号： G06F13/28

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.

摘要翻译： 在片上系统（SOC）中提供分布式直接存储器访问（DMA）方法，装置和系统。 DMA控制器单元被分配到各种需要直接存储器访问的功能模块。 功能模块与直接存储器访问发生的系统总线接口。 将期望直接存储器访问的全局缓冲存储器耦合到系统总线。 总线仲裁器用于仲裁哪些功能模块可以访问系统总线来执行直接存储器访问。 一旦由总线仲裁器选择功能模块来访问系统总线，就可以建立与全局缓冲存储器的DMA程序。

公开(公告)号：US20050216613A1

公开(公告)日：2005-09-29

申请号：US11036827

申请日：2005-01-14

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle Philhower ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle Philhower ,  Ruchir Shah

IPC分类号： G06F13/28

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.

摘要翻译： 在片上系统（SOC）中提供分布式直接存储器访问（DMA）方法，装置和系统。 DMA控制器单元被分配到各种需要直接存储器访问的功能模块。 功能模块与直接存储器访问发生的系统总线接口。 将期望直接存储器访问的全局缓冲存储器耦合到系统总线。 总线仲裁器用于仲裁哪些功能模块可以访问系统总线来执行直接存储器访问。 一旦由总线仲裁器选择功能模块来访问系统总线，就可以建立与全局缓冲存储器的DMA程序。

公开(公告)号：US20050125572A1

公开(公告)日：2005-06-09

申请号：US11036828

申请日：2005-01-14

申请人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle Philhower ,  Ruchir Shah

发明人： Kumar Ganapathy ,  Ruban Kanapathippillai ,  Saurin Shah ,  George Moussa ,  Earle Philhower ,  Ruchir Shah

IPC分类号： G06F13/28

CPC分类号： H04L49/90 ,  G06F12/08 ,  G06F13/28 ,  G06F2213/0038 ,  G11C7/1072

摘要： A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.

摘要翻译： 在片上系统（SOC）中提供分布式直接存储器访问（DMA）方法，装置和系统。 DMA控制器单元被分配到各种需要直接存储器访问的功能模块。 功能模块与直接存储器访问发生的系统总线接口。 将期望直接存储器访问的全局缓冲存储器耦合到系统总线。 总线仲裁器用于仲裁哪些功能模块可以访问系统总线来执行直接存储器访问。 一旦由总线仲裁器选择功能模块来访问系统总线，就可以建立与全局缓冲存储器的DMA程序。