A dual-port memory having a special operating mode (i.e., a block write mode) by which a plurality of memory cells may be written with the same data in a single write cycle is disclosed. The special mode is enabled by a special function pin in conjunction with the write enable and transfer enable function...http://www.google.fr/patents/US4807189?utm_source=gb-gplus-shareBrevet US4807189 - Read/write memory having a multiple column select mode
Read/write memory having a multiple column select mode
