Command Register Bits Constants that you use to access specific bits of the command register. TopicsBitskIOPCICommandIOSpacekIOPCICommandMemorySpacekIOPCICommandBusMasterkIOPCICommandSpecialCycleskIOPCICommandMemWrInvalidatekIOPCICommandPaletteSnoopkIOPCICommandParityErrorkIOPCICommandAddressSteppingkIOPCICommandSERRkIOPCICommandFastBack2BackkIOPCICommandInterruptDisablekIOPCICommandBusLead See AlsoReading and Writing Configuration DataConfigurationRead8ConfigurationRead16ConfigurationRead32ConfigurationWrite8ConfigurationWrite16ConfigurationWrite32Configuration Data OffsetsBridge Header OffsetsStatus Register Bits