TMC TI6VG4, User Manual, Page: 15 / 80

Chapter 3 Hardware Description
TI6VG4 User’s Manual 11
3.11 I/O Port Address Map
Each peripheral device in the system is assigned a set of I/O port
addresses which also becomes the identity of the device. There is a total
of 1K port address space available. The following table lists the I/O port
addresses used on the motherboard.
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)
3.12 Onboard Audio
The AC-97 audio is integrated in the VIA VT82C686A South Bridge
chip. It features high quality PC audio with surround sound to bring new
levels of realism to games and eliminates audio card non-compatibility
issues.
3.13 AMR Slot
The AMR slot on the TI6VG4 motherboard is designed to support an
AC-Link compatible modem riser card. The audio function is already a
built-in feature of the motherboard.