Address lines driven low for the CY7C67200 in sleep mode

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    Question: For the CY7C67200, when in sleep mode, the datasheet says that the address lines are driven low. Why are these inputs driven low?



    In the sleep mode, the external memory address lines are driven low and it is not expected that the memory is shared by an external processor. These address lines are not the same as the HPI_A0 and HPI_A1. Since there is no one else expected to be on this particular address bus, we drive the lines low to conserve power.