Patent ID: 8312331
Filing Date: 2012-11-13
Classification: G11C

Abstract:
1. A method of testing a memory, the method comprising: generating a first address as an address under test (AUT); accessing contents of the AUT in the memory and storing the contents into an address under test (AUT) register; generating a plurality of addresses corresponding to a portion of the memory; accessing contents of each of the plurality of addresses in the memory and storing the contents into a plurality of registers; performing a memory test in the memory on the AUT and the plurality of addresses; generating an access address within an interconnect master; receiving the access address within snooping circuitry of memory test circuitry; determining if the access address matches the AUT and generating a first hit indicator in response to the determining if the access address matches the AUT; determining if the access address matches at least one of the plurality of addresses and generating a plurality of hit indicators in response to the determining if the access address matches at least one of the plurality of addresses; generating within snooping circuitry a snoop miss indicator; determining if the snoop miss indicator indicates a miss because the access address does not match at least one of the AUT and the plurality of addresses; if the snoop miss indicator indicates a miss, accessing the memory in response to the access address; and if the snoop miss indicator does not indicate a miss, either storing snooped data from the interconnect master to a selected register of the group consisting of the AUT register and the plurality of registers, wherein the selected register is determined based on at least one of the first hit indicator and the plurality of hit indicators, or reading the snooped data from the selected register of the group consisting of the AUT register and the plurality of registers to the interconnect master, wherein the plurality of addresses are aliases of the AUT and the plurality of registers are alias registers.