US 12,423,257 B2
Bridge device and data storage system
Chen-Hao Chen, Kaohsiung (TW)
Assigned to Silicon Motion, Inc., Hsinchu County (TW)
Filed by Silicon Motion, Inc., Hsinchu County (TW)
Filed on Aug. 9, 2022, as Appl. No. 17/884,551.
Claims priority of application No. 110144404 (TW), filed on Nov. 29, 2021.
Prior Publication US 2023/0169028 A1, Jun. 1, 2023
Int. Cl. G06F 13/40 (2006.01); G06F 13/42 (2006.01)
CPC G06F 13/4027 (2013.01) [G06F 13/4282 (2013.01); G06F 2213/0026 (2013.01); G06F 2213/0042 (2013.01)] 6 Claims
OG exemplary drawing
 
1. Abridge device, comprising:
a first controller, comprising a first transmission interface operating in a master mode, a third transmission interface configured to communicate with a host device coupled externally to the bridge device according to a first protocol, and a control unit configured to control transmission and reception of signals and packets between the first transmission interface and the third transmission interface and perform format conversion of the signals and the packets within the bridge device; and
a second controller, coupled to the first controller and comprising a second transmission interface operating in a slave mode and coupled to the first transmission interface, a fourth transmission interface configured to communicate with a data storage device coupled externally to the bridge device according to a second protocol different from the first protocol, and a control unit configured to control transmission and reception of signals and packets between the second transmission interface and the fourth transmission interface and perform format conversion of the signals and the packets within the bridge device;
wherein the first transmission interface and the second transmission interface are both a flash memory interface, and the bridge device utilizes the control unit of the first controller to set the first transmission interface to operate in the master mode and the bridge device utilizes the control unit of the second controller to set the second transmission interface to operate in the slave mode,
wherein the first protocol is UFS 3.1 and the second protocol is UFS 3.0.