The RM polls the ring(s). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Erik J. Johnson Intel Research & Development erik.j.johnson@intel.com NOT SPEAKING FOR INTEL ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -----Original Message----- From: Li Zhao [mailto:zhao@cs.ucr.edu] Sent: Friday, March 07, 2003 12:17 AM To: ixp1200@CS.Princeton.EDU Subject: [ixp1200] communication between SA and ME Hi, Does anyone know how the Microengine pass the exceptional packets to the StrongARM? If we use Resource Manager in MicroACE, there is a ring buffer between them and the Microengine puts data into it. How does the Resource manager know there is a packet in the buffer? by polling or interrupt? Thanks. -- Li Zhao Dept. of Computer Science Univ. of California, Riverside Tel:1-909-787-2001