Programmer’s Reference

Table 4-58 PCI bus commands supported

Command

Name

Supported

Supported on

code

on target

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

 

 

 

 

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ARM DUI 0224I

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