Patent ID: 6873330
Filing Date: 2005-03-29
Classification: G06F,G09G

Abstract:
1. A computer system comprising: a host computer system; a first component configured to output data, wherein the data includes requested data and unrequested data; a second component configured to request data from the first component, wherein the second component includes a signature analysis register configured to capture data, wherein the signature analysis register is configured to be controlled by the host computer system; a bus coupling the first component and the second component and configured to transmit data between the first component and the second component; a controller coupled to receive the data and the unrequested data output by the first component, wherein the controller is configured to receive the data output by the first component in response to the second component's request, wherein the controller is configured to replace the unrequested data with predictable data and to output the predictable data and the requested data, wherein the signature analysis register is configured to capture the predictable data and the requested data; and wherein the controller is conflaured to store an indication identifying the reciuested data in response to the second component requesting data from the first component, wherein the controller is configured to select which of the data output by the first component is unrequested data dependent on the indication.