Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
| ID | Date | Version | Classification |
|---|---|---|---|
| 615146 | 08/09/2019 | 1.2 | Public |
PCI Express* Port Configuration Registers
There are up to sixteen sets of the following configuration registers used for PCH PCI Express* Port Configurations. Each PCH PCI Express* Configuration Register set covers a single PCI Express* Port and maps out as the following Device/Function:
D28/F0 = Port1
D28/F1 = Port2
D28/F2 = Port3
D28/F3 = Port4
D28/F4 = Port5
D28/F5 = Port6
D28/F6 = Port7
D28/F7 = Port8
D29/F0 = Port9
D29/F1 = Port10
D29/F2 = Port11
D29/F3 = Port12
D29/F4 = Port13
D29/F5 = Port14
D29/F6 = Port15
D29/F7 = Port16
| Offset | Size (Bytes) | Register Name (Register Symbol) | Default Value |
|---|---|---|---|
| 0h | 4 | XXXX8086h | |
| 4h | 4 | 0h | |
| 8h | 4 | 60400XXh | |
| ch | 4 | Cache Line Size; Primary Latency Timer; Header Type (CLS_PLT_HTYPE) | 810000h |
| 18h | 4 | 0h | |
| 1ch | 4 | 0h | |
| 20h | 4 | 0h | |
| 24h | 4 | 10001h | |
| 28h | 4 | 0h | |
| 2ch | 4 | 0h | |
| 34h | 4 | 40h | |
| 3ch | 4 | 0h | |
| 40h | 4 | 428010h | |
| 44h | 4 | 8001h | |
| 48h | 4 | 100000h | |
| 4ch | 4 | 710C00h | |
| 50h | 4 | 10000h | |
| 54h | 4 | 40060h | |
| 58h | 4 | 0h | |
| 5ch | 4 | 0h | |
| 60h | 4 | 0h | |
| 64h | 4 | 80837h | |
| 68h | 4 | 0h | |
| 6ch | 4 | 0h | |
| 70h | 4 | 0h | |
| 80h | 4 | Message Signaled Interrupt Identifiers; Message Signaled Interrupt Message Control (MID_MC) | 9005h |
| 84h | 4 | 0h | |
| 88h | 4 | 0h | |
| 90h | 4 | A00Dh | |
| 94h | 4 | 0h | |
| a0h | 4 | Power Management Capability; PCI Power Management Capabilities (PMCAP_PMC) | C8030001h |
| a4h | 4 | 8h | |
| d0h | 4 | 0h | |
| d4h | 4 | 0h | |
| d8h | 4 | 1110000h | |
| dch | 4 | 0h | |
| 100h | 4 | 0h | |
| 104h | 4 | 0h | |
| 108h | 4 | 0h | |
| 10ch | 4 | 60011h | |
| 110h | 4 | 0h | |
| 114h | 4 | 2000h | |
| 118h | 4 | 0h | |
| 12ch | 4 | 0h | |
| 130h | 4 | 0h | |
| 134h | 4 | 0h | |
| 144h | 4 | Fh | |
| 148h | 4 | 0h | |
| 200h | 4 | 0h | |
| 204h | 4 | 28281Fh | |
| 208h | 4 | 0h | |
| 20ch | 4 | 28h | |
| 220h | 4 | 0h | |
| 224h | 4 | 0h | |
| 22ch | 4 | 7F7F7F7Fh | |
| 230h | 4 | 7F7F7F7Fh | |
| 300h | 4 | A64F96h | |
| 304h | 4 | 1BC00B86h | |
| 324h | 4 | 2000000h | |
| 338h | 4 | 0h | |
| 400h | 4 | 0h | |
| 404h | 4 | 0h | |
| 418h | 4 | 930h | |
| 420h | 4 | 0h | |
| 450h | 4 | 0h | |
| 454h | 4 | 0h | |
| 458h | 4 | Remote Transmitter Preset/Coefficient List 2 (RTPCL2) (RTPCL2) | 0h |