Semiconductor memory device

摘要

In a semiconductor memory device, an update data control circuit is provided, which selectively couples a physical address input data line or an effective address input data line to a common input data line coupled to a physical address cell that stores a physical address page number. A control terminal of an update circuit of the physical address cell is coupled to a page size cell that stores page size information via an update control circuit, to control a write port of the physical address cell with the page size cell.

主权项

1. A semiconductor memory device comprising:
a first memory circuit; a second memory circuit; a readout circuit configured to read out data stored in the first memory circuit to a first output data line based on the data in the first memory circuit and a first control signal; an update circuit configured to update the data in the first memory circuit to data on a first input data line using second input data from the second memory circuit; and an update data control circuit having a function of selectively outputting first update data or second update data to the first input data line.