Patent
Protocol neutral fabric
Bruce L. Fleming,Achmed R. Zahir,Arvind Mandhani,Satish B. Acharya +3 more
- 24 Sep 2012
3
TL;DR: In this paper, an embodiment integrates non-PCIPCI compliant devices with PCI compliant operating systems. But, the authors do not specify the architecture of the non-IoT devices.
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Abstract: An embodiment integrates non-PCI compliant devices with PCI compliant operating systems. A fabric system mimics the behavior of PCI. When non-PCI compliant devices do not know how to respond to PCI enumeration, embodiments provide a PCI enumeration reply and thus emulate a reply that would typically come from a PCI compliant device during emulation. Embodiments allow system designers to incorporate non-standard fabric structures with the benefit of still using robust and mature PCI infrastructure found in modern PCI compliant operating systems. More generally, embodiments allow an operating system compliant with a first standard (but not a second standard) to discover and communicate with a device that is non-compliant with the first standard (but possibly is compliant with the second standard). Other embodiments are described herein.
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Citations
Patent
Method to integrate arm ecosystem ips into pci-based interconnect
Satish B. Acharya,Achmed R. Zahir,Sean G. Galloway +2 more
- 02 Jan 2013
TL;DR: In this article, an ARM-based IP coupled to a PCI-based fabric is converted to non-posted writes via the fabric-to-fabric bridge and forwarded to the ARMbased ecosystem.
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A method and a system for testing an OCP buckle card
Xu Ming
- 26 Apr 2019
TL;DR: In this paper, a test method and system for an OCP buckle card is presented, and the test system consists of a configuration inspection module, a protocol switching module, data transmission module, judgment module, display module and a storage module.
Patent
Virtual legacy wire
Erik G. Hallnor
- 25 Dec 2014
Abstract: In an example, a system on chip (SoC) includes virtual legacy wire (VLW) functionality. The VLW signal virtualizes a physical interrupt existing in legacy systems to enable a peripheral to cause a processor to enter an interrupt handling routine relevant to the peripheral. The VLW interrupt is broadcast to all cores or agents within the SoC. However, to save power, if one or more agents are asleep when the interrupt occurs, the agents are not awakened to receive the interrupt. Rather, the VLW is broadcast with a mask to exclude those agents, and the state of those agents is stored in a register or buffer. Once a power management agent notifies the VLW broadcaster that an agent has newly awakened. The VLW interrupt is then re-broadcast, with a mask that excludes all but the newly-awakened agent.
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