KP915GV Product Manual
106
A Technical Reference
A.1 I/O Map
Table 8. I/O Map
Address (hex)* Description
0000 – 000F DMA controller 1
0020 – 0021 Interrupt controller 1
002E – 002F SIO control registers
0040 – 0043 Timer counter
0060 – 0064 Keyboard and mouse controller
0062, 0066 Motherboard control registers
0070 – 0071 RTC and CMOS RAM
0080 – 008F DMA controller page registers (for channels 1 and 2)
0092 PC compatible Port 92 (fast A20 and PIC)
00A0 – 00A1 Interrupt controller 2
00B2 – 00B3 Advanced power management (APM) control registers
00C0 – 00DF DMA controller 2
00F0 Floating point error control
0170 – 0177 Secondary IDE controller
01F0 – 01F7 Primary IDE controller
0278 –027F Parallel port, LPT2
02E8 – 02EF COM4 serial port
02F8 – 02FF COM2 serial port
0374 – 0376 Secondary IDE controller
0378 –037F Parallel port, LPT1
x3B0 – x3BB VGA controller
x3C0 – x3CF EGA controller registers
x3D4 – x3DA CGA controller registers
03F0 – 03F5 Flexible diskette controller
03F6 – 03F7 Primary IDE controller
03E8 – 03EF COM3 serial port
03F8 – 03FF COM1 serial port
04D0 – 04D1 Interrupt controller
0678 – 067A ECP registers for parallel port LPT2
0778 – 077A ECP registers for parallel port LPT1
0CF8 – 0CFF PCI configuration address and data registers
1000 – 105F ACPI registers
1060 – 107F TCO controller
1200 – 12FF AC97 audio mixer
