Dual mode DDR SDRAM/SGRAM

Details Dual mode DDR SDRAM/SGRAM Dual mode DDR SDRAM/SGRAM

2005-12-20

2005-12-20

Tung, Kee M. (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Graphic display memory controller

C345S534000, C345S545000, C711S105000, C365S233100, C713S401000

Reexamination Certificate

active

06977655

ABSTRACT:
A dual-mode dual-data rate (DDR) synchronous dynamic random access memory (SDRAM)/synchronous graphic random access memory (SGRAM). An exemplary DDR SDRAM/SGRAM comprises a single memory device, which itself comprises a memory array including a quad-bank DRAM and a logic circuitry. The logic circuitry is coupled to the memory array and is configurable to operate the single memory device in a first mode and a second mode. The first mode may include a delayed lock loop (DLL) capability while the second mode may include a non-DLL capability.

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