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US 2013/0170506 A1Published application
Link between chips using virtual channels and credit based flow control
AssigneeArteris, Inc.
InventorPHILIPPE BOUCARD
Life of this patent
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Abstract
A system and method is disclosed for multiple chips in which the connection between chips is made with registered inputs and registered outputs. This is achieved using a credit-based flow control protocol between the chips. The connection is made as part of a single packet-based on-chip and between-chip network with a common address space between the two chips.
Claims18
A system using a protocol for data transfer, the system comprising:
- a chip including a first register to send data through a link;
- a connected chip including a second register to receive data through the link,
- wherein the link between the chip and the connected chip forms a transfer network using the protocol for transfer of data,
- wherein the transfer network uses the protocol that employs packet based data transfer using a common address space, and
- wherein the availability of data reception capability in the connected chip is indicated to the chip as a credit token sent from the connected chip to the chip.
2 more elements
A method of transferring data on a link between a first chip and a second chip included in a data transfer network employing a common address space, the method comprising the steps of:
- checking the availability of at least one credit token;
- storing at least one phit of the packet in a register of the first chip;
- driving at least one output pin of the first chip from the register;
- receiving the phit from the output pin of the first chip through a link at an input pin of the second chip;
- and
- storing the data in a register in the second chip.
3 more elements
Dependencies are inferred from the claim text.