| 摘要 |
The present invention provides a method for assigning addresses to expanded devices in a computer I/O subsystem, which has one or more buses. Each bus has an N-bit data bus for communication. One or more types of expanded devices are provided in the computer I/O subsystem and are coupled to one or more peripheral buses. An expanded address space is defined for the one or more types of expanded devices by partitioning an N-bit data bus into a pair of fields that includes an expanded ID field and an expanded signature field. An address is assigned to each of the expanded devices by assigning an expanded signature to each type of the expanded devices. In addition, an expanded ID is assigned to each expanded device within each type of the expanded devices, wherein more than two bits are asserted in the address.
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