US 12,093,567 B2
Method for writing data to multiple chip enabled regions in memory module, memory storage device and memory control circuit unit
Teng-Chun Hsu, Hsinchu County (TW); and Chang Han Hsieh, Hsinchu County (TW)
Assigned to PHISON ELECTRONICS CORP., Miaoli (TW)
Filed by PHISON ELECTRONICS CORP., Miaoli (TW)
Filed on Mar. 14, 2022, as Appl. No. 17/694,601.
Claims priority of application No. 111105439 (TW), filed on Feb. 15, 2022.
Prior Publication US 2023/0259306 A1, Aug. 17, 2023
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0659 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0679 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A memory control method, configured to control a rewritable non-volatile memory module, wherein the rewritable non-volatile memory module comprises a plurality of channels and a plurality of chip enabled regions, the plurality of channels are configured to access the plurality of chip enabled regions, and the memory control method comprises:
performing a first write operation based on a first programming mode to sequentially write first data to a plurality of first chip enabled regions among the plurality of chip enabled regions via the plurality of channels;
performing, after the first write operation is performed, a second write operation based on a second programming mode, to sequentially write second data to the plurality of first chip enabled regions and at least one second chip enabled region among the plurality of chip enabled regions via the plurality of channels; and
performing, before the second write operation is performed, a read operation to read the second data from the rewritable non-volatile memory module,
wherein a total number of the plurality of first chip enabled regions is larger than a total number of the at least one second chip enabled region,
one memory cell programmed based on the first programming mode in the first write operation is configured to store p bits, one memory cell programmed based on the second programming mode in the second write operation is configured to store k bits, and k is larger than p.