Patent ID: 9733832
Date: 2017-08-15
CPC Classifications: G06F

Claim:
1. A buffer memory accessing method, suitable for a buffer memory of a flash memory storage device, wherein the flash memory storage device comprises a rewritable non-volatile memory module, wherein the buffer memory has a plurality of write buffer units, the buffer memory accessing method comprising: receiving a write data from a host system; determining whether a number of used write buffer units of the write buffer units is not smaller than a predefined value; temporarily storing the write data to one of the write buffer units that is not being used and transmitting a confirmation message corresponding to the write data to the host system if the number of the used write buffer units of the write buffer units is smaller than the predefined value; and temporarily storing the write data to one of the write buffer units that is not being used and transmitting the confirmation message corresponding to the write data to the host system after a predefined time interval if the number of the used write buffer units of the write buffer units is not smaller than the predefined value.