Title:
HOST DEVICE AND MEMORY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/059216
Kind Code:
A1
Abstract:
While a memory card is in a second operation mode, a host controller according to the present invention monitors a reset signal for the second operation mode and detects that an error has occurred in the second operation mode under the condition that a period in which both a card presence detection signal and the reset signal for the second operation mode are asserted has continued for an amount of time equal to or greater than a first period. In response to the detection of an error occurrence, the host controller generates a first interruption signal for starting a first driver. If the first driver has been started due to the generation of the first interruption signal, the first driver changes the operation mode of the memory card from the second operation mode to a first operation mode by controlling the host controller.
Inventors:
FUJIMOTO AKIHISA (JP)
Application Number:
PCT/JP2020/043420
Publication Date:
March 24, 2022
Filing Date:
November 20, 2020
Export Citation:
Assignee:
KIOXIA CORP (JP)
International Classes:
G06K7/00; G06F12/00; G06F12/06; G06F13/16; G06K19/077
Domestic Patent References:
| WO2018186457A1 | 2018-10-11 |
Foreign References:
| JP2003345674A | 2003-12-05 | |||
| JP2000010668A | 2000-01-14 | |||
| US20200090020A1 | 2020-03-19 |
Other References:
ANONYMOUS: "SD Express (SD7.x) Host Implementation Guideline", SD ASSOCIATION, 1 May 2020 (2020-05-01), pages 1 - 21, XP055917395, Retrieved from the Internet [retrieved on 20220503]
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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