In one aspect, the invention describes a mechanism for refreshing multiple memory words (rows) per refresh cycle, the number of simultaneously refreshed rows being programmable by a small number of inputs. In another aspect, the invention discloses a mechanism for refreshing all banks or a programmable...http://www.google.de/patents/US6633952?utm_source=gb-gplus-sharePatent US6633952 - Programmable refresh scheduler for embedded DRAMs
