3
P M C / P C I I N T E R F A C E
PCI 6254 Configuration Registers
9Ch
A0h
A4h
A8h
ACh
B0h
B4h
B8h
BCh
C0h
C4h
C8h
CCh
D0h
D4h
D8h
DCh
E0h
E4h
E8h
ECh
F0h
Hot Swap Switch ROR | ||||
Control | ||||
|
|
| ||
|
|
|
| |
|
|
|
| |
Upstream Message 3 | Upstream Message 2 | Upstream Message 1 | Upstream Message 0 | |
|
|
|
| |
Downstream Message 3 | Downstream Message 2 | Downstream Message 1 | Downstream Message 0 | |
|
|
|
| |
MSI Control | Next Item Pointer=00 | MSI Cap ID=5 (rev AA=8) | ||
|
|
|
| |
| MSI Address |
| ||
|
|
| ||
| MSI Upper Address |
| ||
|
|
|
| |
reserved | MSI Data | |||
|
|
|
| |
| reserved |
| ||
|
|
|
| |
Downstream Doorbell Request | Downstream Doorbell Enable | |||
|
| |||
Upstream Doorbell Request | Upstream Doorbell Enable | |||
|
|
|
| |
Upstream Interrupt Enable | Downstream Interrupt | Downstream Doorbell Status | ||
Status | ||||
|
|
| ||
|
|
|
| |
Downstream Interrupt | Upstream Interrupt Status | Upstream Doorbell Status | ||
Enable | ||||
|
|
| ||
|
|
|
| |
Extended Register Index | NT Config Own Semaphore | reserved | reserved | |
|
|
|
| |
| Extended Registers Dataport |
| ||
|
|
| ||
Arbiter Control | Diagnostic Control | Chip Control | ||
|
|
| ||
Power Management Capabilities | Next Item Pointer=E4 | Capability ID=01 | ||
|
|
|
| |
Power Management Data | PMSCSR Bridge Support | Power Management CSR | ||
|
|
|
| |
reserved | HSCSR=00 | Next Item Pointer=E8 | Capability ID=06 | |
|
|
|
| |
VPD Register=0000 | Next Item Pointer=00 | Capability ID=03 | ||
|
|
|
| |
| VPD Data Register=0000_0000 |
| ||
|
|
|
| |
| reserved |
| ||
|
|
|
|