Dram and access and operating method thereof
AssigneeMediatek Inc.
InventorBo-Wei Hsieh
Life of this patent
Estimating the term…
Abstract
An access method for a DRAM is provided. A plurality of portions of a row address of a bank corresponding to a activate command is provided. A plurality of sub-commands of the activate command are provided via a command bus, and a plurality of portions of address information regarding the portions of the row address are provided via an address bus. Each portion of the address information includes an individual portion of the row address of the bank. Each first sub-command corresponds to an individual address information. A specific sub-command of the activate command is provided via the command bus, and address information regarding a specific portion of the row address is provided. An access command corresponding to the bank is provided via the command bus after the sub-commands are provided.
Claims11
An access method for a dynamic random access memory (DRAM), comprising:
- providing a plurality of portions of a first row address of a first bank corresponding to a first activate command;
- providing a plurality of first sub-commands of the first activate command via a command bus, and providing a plurality of portions of address information regarding the portions of the first row address via an address bus, wherein each portion of the address information comprises an individual portion of the first row address of the first bank, and each of the first sub-commands corresponds to an individual address information;
- providing a specific sub-command of the first activate command via the command bus, and providing address information regarding a trigger indicator and a specific portion of the first row address via the address bus;
- and
- providing a first access command corresponding to the first bank via the command bus after the first sub-commands are provided,
- wherein the first access command is a read command or a write command, and a quantity of portions of the first row address of the first bank is equal to a quantity of first sub-commands and the specific sub-command.
An access method for a dynamic random access memory (DRAM), comprising:
- providing a plurality of portions of a first row address of a first bank corresponding to a first activate command;
- providing a plurality of first sub-commands of the first activate command via a command bus, and providing a plurality of portions of address information regarding the portions of the first row address via an address bus, wherein each portion of the address information comprises an individual portion of the first row address of the first bank, and each of the first sub-commands corresponds to an individual address information;
- providing a specific sub-command of the first activate command via the command bus, and providing address information regarding a trigger indicator and a specific portion of the first row address via the address bus;
- and
- providing a first access command corresponding to the first bank via the command bus after the first sub-commands are provided,
- wherein each portion of the address information further comprises a bank address of the first bank, and the bank addresses of the portions of address information are the same.
An access method for a dynamic random access memory (DRAM), comprising:
- providing a plurality of portions of a first row address of a first bank corresponding to a first activate command;
- providing a plurality of first sub-commands of the first activate command via a command bus, and providing a plurality of portions of address information regarding the portions of the first row address via an address bus, wherein each portion of the address information comprises an individual portion of the first row address of the first bank, and each of the first sub-commands corresponds to an individual address information;
- providing a specific sub-command of the first activate command via the command bus, and providing address information regarding a trigger indicator and a specific portion of the first row address via the address bus;
- providing a first access command corresponding to the first bank via the command bus after the first sub-commands are provided;
- providing at least one second sub-command corresponding to a second activate command via the command bus, and providing address information of a second row address via the address bus, wherein the address information of the second row address comprises an individual portion of the second row address of the first bank different from the first portions of the first row address in the first bank;
- and
- providing a second access command corresponding to the second activate command via the command bus after the second sub-command and the address information of the second row address are provided,
- wherein a quantity of second portions of the second row address is equal to a quantity of portions of the first row address.
Dependencies are inferred from the claim text.