Steven Jian Feng

US Patent:

61483885, Nov 14, 2000

Filed:

Jan 15, 1998

Appl. No.:

9/007621

Inventors:

Frank Yuhhaw Wu - Fremont CA
Steven K. Feng - Cupertino CA

Assignee:

Seagate Technology, Inc. - Scotts Valley CA

International Classification:

G06F 1206

US Classification:

711217

Abstract:

The present disclosure concerns a method and apparatus for accessing a memory device, such as a dynamic random access memory (DRAM). The DRAM has a plurality of rows, wherein each row has a plurality of DRAM paragraphs comprised of a plurality of contiguous columns. A linear shift register (LSR) translates a plurality of logical addresses to corresponding physical address locations in the DRAM. Each translated physical address is comprised of a row address and a column address. A physical address, including the row and column addresses, is accessed from the LSR. To access the DRAM paragraph at the accessed physical address, the row in the DRAM at the accessed row address location is strobed to setup and precharge the row. Following, all columns in the DRAM paragraph at the accessed physical address are strobed. After strobing the columns in a DRAM paragraph, the next physical address in the LSR, including the next row and column addresses, is accessed.