INTERRUPT NOTIFICATION BLOCK

摘要

An interrupt notification block stored in host memory (132) is disclosed that contains an image of the interrupts condition contents that may be stored in a host attention register (120) in a host interface port (104). The interrupt notification block is written by the host interface port and pre-fixed into the port pointer array (106) of a host at the time the host interface port updates the pointers stored in a port pointer array in host memory. The host may then read the interrupt notification block to determine how to process a response or an interrupt rather then having to read the host attention register in the host interface port across the host bus (102).