US 12,014,079 B2
Operation method of universal flash storage host and operation method of universal flash storage system
Youngjoon Jang, Hwaseong-si (KR); Minji Kim, Seoul (KR); Seungil Kim, Suwon-si (KR); and Hyung-Kyun Byun, Yongin-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jan. 20, 2022, as Appl. No. 17/579,665.
Claims priority of application No. 10-2021-0016934 (KR), filed on Feb. 5, 2021; and application No. 10-2021-0031915 (KR), filed on Mar. 11, 2021.
Prior Publication US 2022/0253239 A1, Aug. 11, 2022
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0656 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0679 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An operation method of a universal flash storage (UFS) host configured to control a UFS device, the method comprising:
configuring a turbo write buffer of the UFS device;
sending a first query request UFS protocol information unit (UPIU) including reconfiguration information about the turbo write buffer to the UFS device, during driving the UFS device, the reconfiguration information including a turbo write buffer capacity adjustment factor of the turbo write buffer; and
receiving a first response UPIU associated with the first query request UPIU from the UFS device, wherein,
the first query request UPIU is a request that causes a size of the turbo write buffer of the UFS device to be changed from a first size to a second size different from the first size,
each of memory cells corresponding to the turbo write buffer is configured to store “N” bits, where “N” is a natural number, and
the turbo write buffer capacity adjustment factor indicates information about “N”.