公开(公告)号：US20140307748A1

公开(公告)日：2014-10-16

申请号：US14310164

申请日：2014-06-20

申请人： Mahesh Wagh ,  Abhishek Singhal ,  Jasmin Ajanovic

发明人： Mahesh Wagh ,  Abhishek Singhal ,  Jasmin Ajanovic

IPC分类号： H04L29/06

CPC分类号： H04L69/22 ,  G06F13/385 ,  Y02D10/14 ,  Y02D10/151

摘要： In one embodiment, the present invention includes a fabric on a first semiconductor die to communicate with at least one agent on the die according to an on-chip protocol and a packetization layer coupled to the fabric to receive command and data information from the fabric on multiple links and to packetize the information into a packet for transmission from the die to another die via an in-package packetized link. Other embodiments are described and claimed.

摘要翻译： 在一个实施例中，本发明包括在第一半导体管芯上的结构，以根据片上协议与管芯上的至少一个代理进行通信，以及耦合到该结构的分组层，以从该结构接收命令和数据信息 多个链路并且将信息分组成分组，以经由内部分组化链路从芯片传输到另一个管芯。 描述和要求保护其他实施例。

公开(公告)号：US08549183B2

公开(公告)日：2013-10-01

申请号：US12883781

申请日：2010-09-16

申请人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

发明人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC分类号： G06F3/00 ,  G06F5/00

CPC分类号： G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

摘要： A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

公开(公告)号：US08473642B2

公开(公告)日：2013-06-25

申请号：US13198559

申请日：2011-08-04

申请人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

发明人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC分类号： G06F3/00 ,  G06F12/00

CPC分类号： G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

摘要： A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

摘要翻译： 这里描述了用于增强/扩展串行点对点互连架构的方法和装置，例如外围组件互连Express（PCIe）。 提供了时间和地点缓存提示和预取提示，以改进系统范围的缓存和预取。 包括用于仲裁系统设备/资源之间的所有权的原子操作的消息代码，以便有效地访问/拥有共享数据。 提供的松散的事务排序，同时将对应的事务优先级保持到内存位置，以确保数据完整性和高效的内存访问。 包括有功功率子状态及其设置以允许更有效的电源管理。 并且，提供设备本地存储器在主机地址空间中的缓存以及设备本地存储器地址空间中的系统存储器的缓存，以提高存储器访问的带宽和延迟。

公开(公告)号：US08230119B2

公开(公告)日：2012-07-24

申请号：US12861439

申请日：2010-08-23

申请人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

发明人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC分类号： G06F3/00 ,  G06F13/20

CPC分类号： G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

摘要： A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

摘要翻译： 这里描述了用于增强/扩展串行点对点互连架构的方法和装置，例如外围组件互连Express（PCIe）。 提供了时间和地点缓存提示和预取提示，以改进系统范围的缓存和预取。 包括用于仲裁系统设备/资源之间的所有权的原子操作的消息代码，以便有效地访问/拥有共享数据。 提供的松散的事务排序，同时将对应的事务优先级保持到内存位置，以确保数据完整性和高效的内存访问。 包括有功功率子状态及其设置以允许更有效的电源管理。 并且，提供设备本地存储器在主机地址空间中的缓存以及设备本地存储器地址空间中的系统存储器的缓存，以提高存储器访问的带宽和延迟。

公开(公告)号：US20120089750A1

公开(公告)日：2012-04-12

申请号：US13316349

申请日：2011-12-09

申请人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi (Abraham) Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

发明人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi (Abraham) Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC分类号： G06F3/00

CPC分类号： G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

摘要： A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

摘要翻译： 这里描述了用于增强/扩展串行点对点互连架构的方法和装置，例如外围组件互连Express（PCIe）。 提供了时间和地点缓存提示和预取提示，以改进系统范围的缓存和预取。 包括用于仲裁系统设备/资源之间的所有权的原子操作的消息代码，以便有效地访问/拥有共享数据。 提供的松散的事务排序，同时将对应的事务优先级保持到内存位置，以确保数据完整性和高效的内存访问。 包括有功功率子状态及其设置以允许更有效的电源管理。 并且，提供设备本地存储器在主机地址空间中的缓存以及设备本地存储器地址空间中的系统存储器的缓存，以提高存储器访问的带宽和延迟。

公开(公告)号：US20110161703A1

公开(公告)日：2011-06-30

申请号：US13046345

申请日：2011-03-11

申请人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

发明人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC分类号： G06F1/32

CPC分类号： G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

摘要： A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

公开(公告)号：US20080195780A1

公开(公告)日：2008-08-14

申请号：US11933126

申请日：2007-10-31

申请人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi (Arraham) Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

发明人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi (Arraham) Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC分类号： G06F13/42

CPC分类号： G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

摘要： A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

公开(公告)号：US08793404B2

公开(公告)日：2014-07-29

申请号：US13493606

申请日：2012-06-11

申请人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

发明人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC分类号： G06F3/00 ,  G06F13/00

CPC分类号： G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

摘要： A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

摘要翻译： 这里描述了用于增强/扩展串行点对点互连架构的方法和装置，例如外围组件互连Express（PCIe）。 提供了时间和地点缓存提示和预取提示，以改进系统范围的缓存和预取。 包括用于仲裁系统设备/资源之间的所有权的原子操作的消息代码，以便有效地访问/拥有共享数据。 提供的松散的事务排序，同时将对应的事务优先级保持到内存位置，以确保数据完整性和高效的内存访问。 包括有功功率子状态及其设置以允许更有效的电源管理。 并且，提供设备本地存储器在主机地址空间中的缓存以及设备本地存储器地址空间中的系统存储器的缓存，以提高存储器访问的带宽和延迟。

公开(公告)号：US08555101B2

公开(公告)日：2013-10-08

申请号：US13046345

申请日：2011-03-11

申请人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

发明人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC分类号： G06F1/00 ,  G06F1/26 ,  G06F13/00 ,  G06F13/42 ,  G06F13/14 ,  H04M1/00

CPC分类号： G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

摘要： A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

公开(公告)号：US08447888B2

公开(公告)日：2013-05-21

申请号：US13316349

申请日：2011-12-09

申请人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

发明人： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC分类号： G06F3/00

CPC分类号： G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

摘要： A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

摘要翻译： 这里描述了用于增强/扩展串行点对点互连架构的方法和装置，例如外围组件互连Express（PCIe）。 提供了时间和地点缓存提示和预取提示，以改进系统范围的缓存和预取。 包括用于仲裁系统设备/资源之间的所有权的原子操作的消息代码，以便有效地访问/拥有共享数据。 提供的松散的事务排序，同时将对应的事务优先级保持到内存位置，以确保数据完整性和高效的内存访问。 包括有功功率子状态及其设置以允许更有效的电源管理。 并且，提供设备本地存储器在主机地址空间中的缓存以及设备本地存储器地址空间中的系统存储器的缓存，以提高存储器访问的带宽和延迟。