US 11,841,756 B2
Method for information configuration in power mode change for an interconnection protocol, controller and storage device
Lan Feng Wang, Zhubei (TW); and Won Kyoo Lee, Icheon-si (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Dec. 22, 2021, as Appl. No. 17/559,289.
Claims priority of application No. 110108147 (TW), filed on Mar. 8, 2021.
Prior Publication US 2022/0283622 A1, Sep. 8, 2022
Int. Cl. G06F 1/3225 (2019.01); G06F 1/3234 (2019.01); G06F 13/16 (2006.01); G06F 13/42 (2006.01); G06F 13/38 (2006.01)
CPC G06F 1/3225 (2013.01) [G06F 1/3275 (2013.01); G06F 13/1668 (2013.01); G06F 13/382 (2013.01); G06F 13/4221 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for information configuration in power mode change for an interconnection protocol, for use in a first device capable of linking to a second device according to the interconnection protocol, the method comprising:
while a hardware protocol engine of the first device for implementing a protocol layer of the interconnection protocol performs power mode change according to the protocol layer,
generating, by the hardware protocol engine, a configuration indication signal to trigger a piece of firmware of the first device for performing information configuration for a physical layer of the interconnection protocol, wherein the configuration indication signal is non-standard with respect to the interconnection protocol and the piece of firmware is outside of the hardware protocol engine;
in response to the configuration indication signal, performing the information configuration for the physical layer by the piece of firmware; and
upon completion of the information configuration for the physical layer, informing, by the piece of firmware, the hardware protocol engine of the completion of the information configuration.