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Table 4-58 PCI bus commands supported
Command
code
Name
Supported
on target
Supported on
initiator
b0000 Interrupt Acknowledge Ignored Not available
b0001 Special Cycle Ignored Not available
b0010 I/O read Yes Yes
b0011 I/O write Yes Yes
b0100 Reserved Ignored Not available
b0101 Reserved Ignored Not available
b0110 Memory Read Yes Yes
b0111 Memory Write Yes Yes
b1000 Reserved Ignored Not available
b1001 Reserved Ignored Not available
b1010 Configuration Read Yes Yes
b1011 Configuration Write Yes Yes
b1100 Memory Read Multiple Yes Not available
b1101 Dual Address Cycle Ignored Not available
b1110 Memory Read Line Yes Not available
b1111 Memory Write Invalidate Yes Not available