Patent ID: 9026703
Filing Date: 2015-05-05
Classification: G06F

Abstract:
1. A bus monitoring device configured to measure a transfer loss of data on a common bus for a constant unit time defined in advance, based on transfer information indicating a state of exchange of the data when a plurality of processing blocks connected to the common bus exchange the data via the common bus with a memory including an address space having a plurality of banks, the bus monitoring device comprising: a data access acceptance signal generation unit configured to output a data access acceptance signal indicating that a data access signal has been accepted, the data access signal being output in accordance with requests of data access from the plurality of processing blocks; a virtual access signal generation unit configured to output a virtual access signal depending on a state of the data access; and a bus state determination unit configured to determine the transfer loss of the data on the common bus and output a determined result of the transfer loss as the transfer information, wherein the bus state determination unit compares a signal interval of the data access acceptance signal output from the data access acceptance signal generation unit with a predetermined standard request time in accordance with the virtual access signal, and determines whether the transfer loss of the data exists or not.