3.11.1. Writes

For data writes by the processor, the write data is duplicated on the data bus. So for a 16-bit data store, one copy of the data appears on the upper half of the write data bus, WDATA[31:16], and the same data appears on the lower half, WDATA[15:0]. For 8-bit writes four copies are output, one on each byte lane:

This considerably eases the memory control logic design and helps overcome any endian effects.

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