Patent ID: 6882583

Claim:
A method of serially storing and retrieving fuse information to and from a static random access memory (SRAM) array within an embedded dynamic random access memory (DRAM) structure, wherein said SRAM array is connected to upstream and downstream latches that make up a scan chain, said method comprising: serially scanning data into said scan chain; counting the number of bits scanned into said embedded DRAM structure using a counter; loading said fuse information into a shift register after said counter counts to an amount equal to the number of bits of storage of all downstream scan latches in said scan chain; loading contents of said shift register to a SRAM line of said SRAM array when said shift register is full; repeating said processes of loading said shift register and loading said SRAM array until said SRAM array is full; and reading said fuse information from said SRAM array by specifying an address in said SRAM array.