公开(公告)号：US09880898B2

公开(公告)日：2018-01-30

申请号：US14793914

申请日：2015-07-08

Applicant: ARM LIMITED

Inventor： Michael Williams ,  Simon John Craske ,  Loïc Pierron

IPC: H04L1/18 ,  G06F11/10 ,  H04L1/00

CPC classification number: G06F11/1004 ,  H04L1/004 ,  H04L1/0045 ,  H04L1/0061 ,  H04L2001/0094

Abstract: Transmission control checking circuitry adds control check data to a transaction response which is received at a transaction master and compared with expected data at the transaction master. The expected data having control check data may be a unique transaction identifier. The transaction master generated the unique transaction identifier when it generated the transaction request and will check that the transaction responses include that unique transaction identifier. In this way, errors in the control of transmission of transactions (e.g., misrouting) may be detected.