Ampro Little Board 700 Reference Manual page 73

Chapter 4
•
Port – [3F8h], [2F8h], [3E8h], or [2E8h]
This field selects the COM (Serial) port address used for console redirection when
[Enabled] has been selected in Serial Console. Use a standard null-modem serial cable.
However, connecting a Hot Cable to the other port (port not selected) overrides this field
setting and activates the connected port. Connecting a Hot Cable to one of the serial ports
only allows console redirection when a Hot Cable is actually connected to Serial 1 or 2.
Use the modified serial cable described in Chapter 3, under Hot (Serial) Cable.
♦
USB Boot Support – [Disabled] or [Enabled]
This field allows you to select any USB device as a boot device. Refer also to Drive
Assignment settings, Boot Order settings, and USB (device enable) under On-Board
Controllers for the USB Drive settings and the number of USB ports enabled, respectively.
•
If this field is set to [Disabled], none of the USB devices connected to the LittleBoard 700
can be used as a boot device.
•
If this field is set to [Enabled], any of the bootable USB devices connected to the
LittleBoard 700 can be used as a boot device.
NOTE Ampro does not recommend connecting a USB boot device to the
LittleBoard 700 through an external hub. Instead, connect the USB
boot device directly to the LittleBoard 700.
• On-Board Serial Ports
NOTE Serial Ports 1 and 2 can not share the same IRQs, and the IRQs used
for Serial Ports 1 and 2 can not be used for Serial Ports 3 and 4 and
vice versa.
♦
Serial 1 – [Disabled], [3F8h], [2F8h], [3E8h], [2E8h], [260h], [2F0h], [3E0h], [2E0h],
[200h], or [220h]
This field specifies the base address used for Serial Port 1.
•
IRQ – [none], [1], [3], [4], [5], [6], [7], [9], [10], [11], [12], [14], or [15]
This field specifies the IRQ used for Serial Port 1. If this field is set to [none], then no
IRQ is assigned, making it available for other devices.
•
Mode – [RS-232] or [RS-485]
This field specifies the signal mode, RS232, or RS485, used for Serial Port 1. If [RS-485]
mode is selected, the RTS signal should be used to control the direction for this port
(transmit or receive).
♦
Serial 2 – [Disabled], [3F8h], [2F8h], [3E8h], [2E8h], [260h], [2F0h], [3E0h], [2E0h],
[200h], or [220h]
This field specifies the base address used for Serial Port 2.
• IRQ – [none], [1], [3], [4], [5], [6], [7], [9], [10], [11], [12], [14], or [15]
This field specifies the IRQ used for Serial Port 2. If this field is set to [none], then no
IRQ is assigned, making it available for other devices.
•
Mode – [RS-232] or [RS-485]
This field specifies the signal mode, RS232, or RS485, used for Serial Port 2. If [RS-485]
mode is selected, the RTS signal should be used to control the direction for this port
(transmit or receive).
LittleBoard 700 Reference Manual
BIOS Setup
67