Datasheet

PCI Express*
Intel
®
Atom™ Processor E6xx Series Datasheet
123
8.2.2.1 CLIST — Capabilities List
8.2.2.2 XCAP — PCI Express* Capabilities
8.2.2.3 DCAP — Device Capabilities
Table 150. Offset 40h: CLIST — Capabilities List
Size: 16 bit Default: 9010h Power Well: Core
Access
PCI Configuration B:D:F 0:23-26:0
Offset Start:
Offset End:
40h
41h
Bit Range Default Access Acronym Description
15 : 08 90h RO NEXT Next Capability: Value of 90h indicates the location of the next pointer.
07 : 00 10h RO CID Capability ID: This indicates this is a PCI Express* capability.
Table 151. Offset 42h: XCAP — PCI Express* Capabilities
Size: 16 bit Default: 0041h Power Well: Core
Access
PCI Configuration B:D:F 0:23-26:0
Offset Start:
Offset End:
42h
43h
Bit Range Default Access Acronym Description
15 : 14 0h RO RSVD Reserved
13 : 09 0h RO IMN
Interrupt Message Number: The processor
does not have multiple
MSI interrupt numbers.
08 0b RWO SI
Slot Implemented: This indicates whether the root port is connected to
a slot. Slot support is platform-specific. The BIOS programs this field,
and it is maintained until a platform reset.
07 : 04 4h RO DT Device/Port Type: This indicates this is a PCI Express* root port.
03 : 00 1h RO CV Capability Version: This indicates PCI Express* 1.0a.
Table 152. Offset 44h: DCAP — Device Capabilities (Sheet 1 of 2)
Size: 32 bit Default: 00008FC0h Power Well: Core
Access
PCI Configuration B:D:F 0:23-26:0
Offset Start:
Offset End:
44h
47h
Bit Range Default Access Acronym Description
31 : 28 0h RO RSVD Reserved
27 : 26 00b RO CSPS Captured Slot Power Limit Scale: Not supported
25 : 18 0h RO CSPV Captured Slot Power Limit Value: Not supported
17 : 16 00b RO RSVD Reserved
15 1b RO RBER
Role-based Error Reporting: Indicates that this device implements the
functionality defined in the Error Reporting ECN for the PCI Express* 1.0a
specification
14 0b RO PIP
Power Indicator Present: This indicates that no power indicator is
present on the root port.
13 0b RO AIP
Attention Indicator Present: This indicates that no attention indicator
is present on the root port.
12 0b RO ABP
Attention Button Present: This indicates that no attention button is
present on the root port.