PhoenixBIOS features and setup
Issue G 65
Field Explanation
Wake On Ring
Choose whether the computer is to wake from
standby/hibernation in response to a Ring Indicator (RI) signal
from serial port COM1.
Serial port COM2
Choose how this port is to be configured. The options available
are the same as for Serial Port COM1, above.
Mode
Set the mode for this port. This can be:
•
Normal: Standard RS232 mode.
• ASK-IR: Sharp Amplitude Shift Keying mode.
• IRDA: IrDA 1.0 infrared communications mode.
Base I/O Address
Specify the I/O address to be used by serial port COM2. This can
be 2E8, 3E8, 2F8 or 3F8.
Interrupt
Specify the interrupt line to be used by serial port COM2. This can
be IRQ3 or IRQ4.
Wake On Ring
Choose whether the computer is to wake from
standby/hibernation in response to a Ring Indicator (RI) signal
from serial port COM2.
Serial Port COM4
This serial port is based on a PCI UART, so has no I/O address or
interrupt line configuration options. You can, however, specify the
interface mode for this port (see below).
Mode
Set the mode for serial port COM4. You are offered RS232 by
default. You can change this, if required, to RS485 or RS422,
which provide additional flow control options related to auto RTS.
Auto RTS flow control provides a mechanism whereby the serial
port automatically switches the RS485/422 transceiver from being
a transmitter to a receiver once the last byte has been
transmitted. This means the user can simply read and write to the
device as if it were a normal serial port.
Serial Port COM3 has no BIOS configuration options as it based on a PCI UART
and provides only RS232 output.
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