Patent ID: 11914484
Assignee: XI'AN UNIIC SEMICONDUCTORS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 3:
4. The data backup method according to claim 3, wherein under a condition that the DRAM is DDR4×8, the N-bit DQ is 8-bit DQ, and under a condition that the 8-bit DQ contains four “1”s, the 8-bit DQ is encoded into 8-bit EDQ that is identical therewith; under a condition that the 8-bit DQ contains five to eight “1”s, the 8-bit DQ is index mapped to seven bits in the 8-bit EDQ, in which 8-bit EDQ number of “1”s is not four, and the 1-bit DBI is written into remaining one bit in the 8-bit EDQ.