| 摘要 |
PROBLEM TO BE SOLVED: To provide a bus communication apparatus which allows a communication destination master to issue a command in advance and is capable of improving bus transfer efficiency. SOLUTION: A communication source master 101 selectively uses an arbitration completion notification signal and a memory access completion notification signal. Based on the arbitration completion notification signal, the communication source master 101 issues a command issue permission signal to the communication destination master 102, and the communication destination master 102 generates and issues a command for accessing a shared memory 12. Based on the memory access completion notification signal, the communication source master 101 issues a command issue permission signal to the communication destination master 102, and the communication destination master 102 generates and issues a command for accessing the shared memory 12. COPYRIGHT: (C)2009,JPO&INPIT
|
