Partial reconfiguration of programmable devices
First Claim
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1. A bridge circuit of a programmable logic device (PLD) to:
- receive a first configuration data from a communications interface, the first configuration data indicating states of configurable elements of a region of configurable logic of the PLD to implement a first functionality, the bridge circuit to freeze inputs and outputs of the region of the configurable logic, and the bridge circuit to provide bits of the first configuration data to a control block of the PLD to configure the configurable elements after freezing the inputs and outputs.
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Abstract
Techniques and mechanisms disclosed herein provide a partial reconfiguration bitstream for a region of configurable logic of a programmable logic device over a communications interface such as the Peripheral Component Interconnect Express (PCIe) protocol.
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Citations
20 Claims
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1. A bridge circuit of a programmable logic device (PLD) to:
receive a first configuration data from a communications interface, the first configuration data indicating states of configurable elements of a region of configurable logic of the PLD to implement a first functionality, the bridge circuit to freeze inputs and outputs of the region of the configurable logic, and the bridge circuit to provide bits of the first configuration data to a control block of the PLD to configure the configurable elements after freezing the inputs and outputs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for partial reconfiguration of a programmable logic device (PLD), the method comprising:
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receiving, by a bridge circuit of the PLD, from a communication interface providing communications between the PLD and a host device, an indication that a portion of configurable logic of the PLD is to be reconfigured; freezing, by the bridge circuit, inputs and outputs of the portion of the configurable logic of the PLD; receiving, by the bridge circuit, data providing a partial reconfiguration bitstream for the portion of the configurable logic of the PLD that is to be reconfigured; and providing, by the bridge circuit, the partial reconfiguration bitstream for the portion of the configurable logic of the PLD to a control block for reconfiguring the portion of the configurable logic. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A system comprising:
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a bridge circuit to receive configuration data from a host device, the configuration data indicating states of configurable elements of a region of configurable logic to implement a first functionality, the bridge circuit to freeze inputs and outputs of the region of the configurable logic, and a control circuit to receive a bitstream from the configuration data to configure the configurable elements of the region, bits in the bitstream corresponding to the states of the configuration elements of the region of the configurable logic. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification