Technical specifications
8.7 BIOS description
SIMATIC IPC427D
Operating Instructions, 05/2017, A5E31347215-AB
151
Advanced menu > "USB Configuration" submenu
Entry
Meaning
XHCI Pre-
Boot Driver
Switches on (Enabled) or switches off (Disabled) compatibility mode of the USB3
host controller for operating systems which do not support USB3.
XHCI
Enable or disable USB 3.0 support.
Auto
During the BIOS boot stage, USB 2.0 support only. After the operating
system has started, an OS-specific USB 3.0 driver takes over the control.
Smart
Auto
During the BIOS boot stage, only USB 2.0 support. USB 3.0 support is
available during the subsequent warm restart, after the OS-specific USB
3.0 driver has reconfigured the XHCI controller.
HS Port
Switch #
Enables the HS port for switching between XHCI and EHCI. If the HS port is routed to
XHCI, the corresponding SS port is activated. If not enabled (Disabled), the port is
routed to EHCI.
Per-Port
Control
Enables or disables data transfer to the USB port.
USB
Port#
Enables (Enabled) and disables (Disabled) USB port no.# (see table be-
low).
The following table lists the assignment of the USB ports to the USB interfaces:
USB port
USB interface
1
Ext. interface X61
2
Ext. interface X60
3
Ext. interface X63
4
Ext. interface X62
6
Internal
7
Internal
8
Front interface X42 (with panel fronts only)
9
Internal