MULTI PROCESSOR SYSTEM HAVING MULTI COMMAND SET OPERATION AND PRIORITY OPERATION FUNCTION

摘要

PURPOSE: A multi processor system including a multi command set operation and a primary processing operation function are provided to reduce a timing overhead by a frequent interrupt, thereby increasing a read/write operation performance. CONSTITUTION: A multiport semiconductor memory device(300) includes a mailbox and a shared memory area. The first processor(100) lights a multi command which commands read/write operations as a multi command set in a command area of the shared memory area and informs a multi command write message through the mailbox. The second processor(200) recognizes a reception of the multi command through the mailbox and orderly performs read/write operations according to the multi command set.