Data-in buses provide the new data value to be written into RAM. The regular data-in bus (DIN), plus the data-in parity bus (DINP), when available, have a total width equal to the port width. For example, the 36-bit port data width is represented by DIN[31:0] and DINP[3:0], as shown in Table 1 through Table 4. Refer to Table 5 for port name mapping for block RAMs used as SDP memories.