Chapter 2 Installation and ConfigurationNI PXI-8184/8185 User Manual 2-8 ni.comPort section of Chapter 3, I/O Information, for pinout information.)Setting this option to Parallel Port disables normal LPT1functionality. The default is Disabled.• Legacy USB Support—Use this setting to use a USB keyboard andmouse as if they were standard PS/2-style peripherals. You must enablethis setting to use these devices in operating systems with no USBsupport and to boot from a USB floppy or CD-ROM. The BIOS setupscreen always works with USB keyboards regardless of this setting.Certain real-time applications may require you to disable this settingto reduce loop time jitter. The default is Enabled.PXI Setup MenuUse this menu to control and route certain signals on the PXI backplane.Normally, you do not need to modify these settings. However, othersections of this manual may indicate that modifications are necessaryand may lead to unpredictable behavior.• INTP Routing—You can route INTP to ISA IRQ 14, for use by aPXI device functioning as a Primary IDE Controller. The defaultsetting is Not Routed.• INTS Routing—You can route INTS to ISA IRQ 15, for use by aPXI device functioning as a Secondary IDE Controller. You also canroute it to the controller’s 21-frame serialized IRQ input, for use bycertain PXI carrier cards. The default setting is Not Routed.Note If INTS or INTP is routed to an ISA IRQ, you must disable one or both channels ofthe integrated IDE/ATA controller for correct operation of this routing.LabVIEW RT Setup MenuNote This menu is visible only if the controller supports LabVIEW RT.Use this menu to configure boot options for LabVIEW RT if it is installedon the controller. If you are not using LabVIEW RT, you should leave thesesettings as default.Note These settings override the behavior of the switches on SW1. Refer to the LabVIEWRT Configuration Switches section for more information. To use the settings from theswitches, select Use Hardware Switch for each option.