User Manual

Table Of Contents
5-39
RS720Q-E10-RS8U
Port 0/DMI
Settings related to PCI Express Ports (0/1A/1B/1C/1D/2A/2B/2C/2D/3A/3B/3C/3D/4A4
B/4C/4D/5A/5B/5C/5D)
Link Speed [Auto]
Choose the Link Speed for this PCIe port.
Conguration options: [Auto] [Gen 1 (2.5 GT/s)] [Gen 2 (5 GT/s)] [Gen 3 (8
GT/s)]
The following item appears only when
Link Speed
is set to
[Auto]
,
[Gen 2 (5 GT/s)]
, or
[Gen
3 (8 GT/s)]
.
PCI-E Port DeEmphasis [-6.0 dB]
De-Emphasis control (LNKCON2 [6]) for this PCIe port.
Conguration options: [-6.0 dB] [-3.5 dB]
PCI-E Port Clocking [Common]
Congure port clocking via LNKCON [6]. This refers to this component and
the down stream component.
Conguration options: [Distinct] [Common]
PCI-E Port Clock Gating [Enable]
Allows you to enable or disable Clock Gating for this PCIe port.
Conguration options: [Disable] [Enable]
Data Link Feature Exchange [Enable]
Allows you to enable or disable data link feature negotiation in the Data
Link Feature Capabilities (DLFCAP) register.
Conguration options: [Disable] [Enable]
DMI Port MPSS [Auto]
Congure Max Payload Size Supported in PCIe Device Capabilities
register. If default value is not used make sure MPSS in PCH root ports is
updated to the same or smaller value.
Conguration options: [128B] [256B] [Auto]
PCI-E Port D-state [D0]
Set to D0 for normal operation, D3Hot to bi in low-power state.
Conguration options: [D0] [D3Hot]
PCI-E ASPM Support [Disable]
Allows you to enable or disable ASPM (L1) support for the downstream
devices.
Conguration options: [Auto] [L1 Only] [Disable]
The following item appears only when
PCI-E ASPM Support
is set to
[Auto]
or
[L1 Only]
.
PCI-E Port L1 Exit Latency [8uS - 16uS]
The length of time this port requires to complete transition from L1 to L0.
Conguration options: [<1uS] [1uS - 2uS] [2uS - 4uS] [4uS - 8uS] [8uS -
16uS] [16uS - 32uS] [32uS - 64uS] [>64uS]
MSI [Disable]
Conguration options: [Disable] [Enable]
PCI-E Extended Sync [No]
Allows you to enable or disable the Extended Sync Mode (D:x F:0 0:7Ch B:7)
where x is 0-9.
Conguration options: [No] [Yes]