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US 11,030,130 B2Granted
Storage device, access method and system utilizing the same
AssigneeWinbond Electronics Corp.
InventorChih-Wei Liang
Life of this patent
Estimating the term…
Abstract
A storage device including a memory array and a peripheral logic circuit is provided. The memory array includes a plurality of banks and a data path. The peripheral logic circuit operates in a copy mode or a normal mode according to a mode-switch command. In the copy mode, the peripheral logic circuit directs a first bank to provide specific data to the data path and directs a second bank to receive specific data from the data path.
Claims18
A storage device comprising:
- a memory array comprising:
- a plurality of banks;
- and
- a data path;
- and
- a peripheral logic circuit operating in a copy mode or a normal mode according to a mode-switch command,
- wherein in the copy mode:
- the peripheral logic circuit decodes an activation command to generate activation information and activates a portion of the banks according to the activation information,
- the peripheral logic circuit decodes a copy command to generate source information and assigns one among the portion of the banks as a source bank according to the source information,
- the peripheral logic circuit performs a specific operation for the activation information and the source information to generate write information and assigns another one of the portion of the banks as a first target bank according to the write information, and
- the peripheral logic circuit directs the source bank to output specific data to the data path and directs the target bank to receive and store the specific data from the data path.
8 more elements
An access method for a storage device comprising a plurality of banks, comprising:
- receiving a mode-switch command to operate in a copy mode or a normal mode;
- in the copy mode:
- decoding an activation command to generate activation information;
- activating a portion of the plurality of banks according to the activation information;
- decoding a copy command to generate source information;
- assigning one of the portion of the plurality of banks as a source bank according to the source information;
- performing a specific operation for the activation information and the source information to generate write information;
- assigning another one of the portion of the plurality of banks as a first target bank according to the write information;
- directing the source bank to provide specific data to a data path;
- and
- directing the first target bank to store the specific data from the data path;
- in the normal mode:
- providing external data to the data path according to a write command and directing the first target bank to store the external data;
- and
- directing the source bank to provide the specific data to the data path and outputting the specific data from the data path to an external interface.
12 more elements
An access system comprising:
- a controller configured to generate a mode-switch command, wherein after the controller sends the mode-switch command, the controller generates an activation command and a copy command;
- and
- a storage device operating according to the mode-switch command, the activation command and the copy command and comprising:
- a memory array comprising:
- a plurality of banks;
- and
- a data path coupled to the plurality of banks;
- and
- a peripheral logic circuit operating in a copy mode or a normal mode according to the mode-switch command,
- wherein in the copy mode:
- the peripheral logic circuit decodes the activation command to generate activation information and activates a portion of the banks according to the activation information,
- the peripheral logic circuit decodes the copy command to generate source information and assigns one among the portion of the banks as a source bank according to the source information,
- the peripheral logic circuit performs a specific operation for the activation information and the source information to generate write information and assigns another one of the portion of the banks as a first target bank according to the write information, and
- the peripheral logic circuit directs the source bank to output specific data to the data path and directs the target bank to receive and store the specific data from the data path.
11 more elements
Dependencies are inferred from the claim text.