BIOS Setup (SCU)
3.4 Advanced menu
BIOS Description
Operating Manual, 05/2016, A5E33664825-AB
17
The following Setup parameters are visible if "Internal COM 2" is enabled.
• Base I/O Address
2E8, 2F8, 3E8, 3F8
The I/O base address is pre-assigned and also
recommended.
• Interrupt
IRQ3, IRQ4
The interrupt is pre-assigned and also
• Transceiver Mode
1
Transceiver
Mode for testing the hardware.
RS232 Non-isolated connection for short distances in
interference-free environment.
Isolated connection for environment with EMC
Isolated connection for environment with EMC
load, transmitting and receiving at the same time.
Internal LPT
4
Enabled Enables the parallel port. You can then set the I/O
base address, interrupt, mode and DMA channel.
Disabled Disables the parallel port. This releases the
Auto Automatically configures the parallel port. BIOS
switches on the parallel interface. Re-configuration
allocates the resources in the operating system.
Re-configuration also sets the mode.
The following Setup parameters are visible if "Internal LPT" is enabled.
• Base I/O Address
278, 378
The I/O base address is pre-assigned and also
• Interrupt
IRQ7
The interrupt is pre-assigned and also
Sets the data transfer mode.
Enhanced Parallel Port: Fast transfer mode of up to
2 Mbps for devices that are not printers, sending
and receiving of data.
The peripheral device must
Enhanced Capability Port: Fast transfer mode of up
to 2.4 Mbps for printers and scanners, sending and
receiving of data. The peripheral device must sup-
port ECP. The DMA channel is set with Plug&Play.
Bi-directional Data transfer in both directions for PS/2 compatible
• DMA Channel
DMA 1, DMA 2,
Sets the DMA channel of the parallel port.
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