Method for accessing memory
AssigneeeMemory Technology Inc.
InventorsChing-Yuan Lin, Hong-Yi Liao, Yen-Tai Lin, Shih-Yun Lin, Chun-Hung Lu
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Abstract
The present invention provides a method for accessing a memory. The memory contains M one-time programmable memory blocks, and each has a first memory sector and a second memory sector. The method includes: selecting a first target memory block and reading the first target memory block. The step of selecting a first target memory block is performed by comparing the second memory sectors of N one-time programmable memory blocks from M one-time programmable memory blocks by following a search rule to select the first target memory block.
Claims13
A method for accessing a memory device, the memory device comprising at least one one-time-programmable (OTP) memory block, and each memory block comprising a first memory section and a second memory section, the method comprising:
- selecting a first target memory block;
- reading the first target memory block;
- and
- if the first memory section of the first target memory block stores a first data, a predetermined value is outputted as the value stored in the first target memory block, and if the first memory section of the first target memory block stores a second data, the value stored in the second memory section of the first target memory block is outputted as the value stored in the first target memory block.
A method for accessing a memory device, the memory device comprising at least one one-time-programmable (OTP) memory block, each memory block comprising a first memory section and a second memory section, and before an OTP memory block is programmed, each memory cell of the OTP memory block storing a first logic value, the method comprising:
- selecting a first target memory block;
- and
- programming the second memory section of the first target memory block such that the second memory section stores a predetermined value to erase the first target memory block.
A method for accessing a memory device, the memory device comprising at least one one-time-programmable (OTP) memory block, each memory block comprising a first memory section and a second memory section, and before an OTP memory block is programmed, each memory cell of the OTP memory block storing a first logic value, the method comprising:
- selecting a target memory block;
- and
- writing a to-be-written data to the target memory block, wherein if the to-be-written data corresponds to a predetermined value, program only the first memory section of the target memory block to store a first data, and if the to-be-written data does not correspond to the predetermined value, program the second memory section of the target memory block according to the to-be-written data.
Dependencies are inferred from the claim text.