Serial Port 2 Base Address; Fir Dma Channel - Acer AcerBasic II User Manual

Setup Utility

SERIAL PORT 2 BASE ADDRESS

This parameter allows you to set the serial port 2 logical
base address. Serial port 2 refers to the internal infrared
transceiver.
Setting Description
3F8h Serial port 2 with address 3F8h using IRQ4
2F8h Serial port 2 with address 2F8h using IRQ3
3E8h Serial port 2 with address 3E8h using IRQ4
2E8h Serial port 2 with address 2E8h using IRQ3
Disabled Disables serial port 2
If you assign 3F8h to serial port 1, you may only
assign 2F8h or 2E8h to serial port 2.
If you assign 2F8h to serial port 1, you may only
assign 3F8h or 3E8h to serial port 2.
If Fast IR Mode is enabled, you need to set a DMA channel
for FIR. When Fast IR Mode is enabled, it occupies the
serial port 2 base address and the FIR DMA channel. The
default value is .
3
54

FIR DMA CHANNEL

User's Guide