TMC AI5TV - I;O Port Address Map; DMA Channels

Chapter 2 Hardware Description
8 AI5TV Motherboard User’s Manual
2.5 I/O Port Address Map
Each peripheral device in the system is assigned a set of I/O port
address which also becomes the identity of the device. There are a total
of 1K port address space available. The following table list the I/O port
address used on the system board.
Address Device Description
000h - 01Fh DMA Controller #1
020h - 03Fh Interrupt Controller #1
040h - 05Fh Timer
060h - 06Fh Keyboard Controller
070h - 07Fh Real Time Clock, NMI
080h - 09Fh DMA Page Register
0A0h - 0BFh Interrupt Controller #2
0C0h - 0DFh DMA Controller #2
0F0h Clear Math Coprocessor Busy Signal
0F1h Reset Math Coprocessor
1F0h - 1F7h IDE Interface
2F8h - 2FFh Serial Port #2(COM2)
378h - 3FFh Parallel Port #1(LPT1)
3F0h - 3F7h Floppy Disk Controller
3F8h - 3FFh Serial Port #1(COM1)
2.6 DMA Channels
There are seven DMA Channels available on the system board. Only
DRQ2 is used by the floppy controller. In the case that ECP mode on
parallel port is used, DRQ1 or DRQ3 will be used.