Patent ID: 8499125
Filing Date: 2013-07-30
Classification: G06F

Abstract:
1. A control device of a snoop tag, the control device comprising: a snoop tag retaining unit to retain the snoop tag corresponding to a content of a cache memory of a processor; a pipeline to receive requests including a replace request and a read request for access to the snoop tag; a queue stored with an entry including a replace target way number and an index associated with the replace request received from the processor, the replace target way number indicating a way that is a replace target; a comparator to compare the index included in the entry stored in the queue with an index in the read request when the read request is received; and a replacing unit to replace a way number based on the read request with the replace target way number included in the entry stored in the queue, the entry including the index which has matched the index in the read request,