B&R Panel PC 2100 User Manual page 207

1.6.5.1 PCI Express root port 0 to 3
Figure 125: Advanced - PCI Express configuration - PCI Express root port
BIOS setting Function
PCI Express root port x Option for enabling/disabling the PCI Express
root port
PCIe x speed Option for setting the PCI Express transfer rate
ASPM
Active State Power Management
Option for configuring a power saving function
(L0s/L1) for PCIe devices if they do not require
full power
Assign INT to root port Option for enabling/disabling the IRQ for the
root port
Table 203: Advanced - PCI Express configuration - PCI Express root port
Panel PC 2100 user's manual V1.11
Configuration options Effect
Enabled Enables the PCI Express root port
Disabled Disables the PCI Express root port
Auto Automatically sets the transfer rate
Gen1 Maximum transfer rate = 2.5 GT/s
Gen2 Maximum transfer rate = 5 GT/s
Disabled Disables this function
L0s Enables the L0 energy saving function
L0sL1 Automatic assignment of L0s or L1 power sav-
ing function by the PCIe device
Auto Automatic assignment by BIOS and the operat-
ing system
Enabled Enables this function
Disabled Disables this function
Software • BIOS options
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