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(11) | EP 2 887 224 A8 |
(12) | CORRECTED EUROPEAN PATENT APPLICATION |
Note: Bibliography reflects the latest situation |
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(54) | Latency agnostic transaction buffer for request-grant protocols |
(57) According to one embodiment, an apparatus includes a transaction data storage to
store transaction data to be transmitted over an interconnect of a data processing
system, a transaction buffer coupled to the transaction data storage to buffer at
least a portion of the transaction data, and a transaction logic coupled to the transaction
data storage and the transaction buffer to transmit a request (REQ) signal to an arbiter
associated with the interconnect in response to first transaction data that becomes
available in the transaction data storage, in response to a grant (GNT) signal received
from the arbiter, retrieve second transaction data from the transaction buffer and
transmit the second transaction data onto the interconnect, and refill the transaction
buffer with third transaction data retrieved from the transaction data storage after
the second transaction data has been transmitted onto the interconnect.
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