Intel SE440BX - Desktop Board Motherboard

SE440BX-2 Motherboard Product Guide
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I/O Map
Table 37. I/O Map
Address (hex) Size Description
0000 - 000F 16 bytes DMA controller 1
0020 - 0021 2 bytes Interrupt controller 1
002E - 002F 2 bytes Super I/O controller configuration registers
0040 - 0043 4 bytes Counter/Timer 1
0048 - 004B 4 bytes Counter/Timer 2
0060 1 byte Keyboard controller
0061 1 byte NMI, speaker control
0064 1 byte Keyboard controller
0070 - 0071 2 bytes Real time clock controller
0080 - 008F 16 bytes DMA page registers
00A0 - 00A1 2 bytes Interrupt controller 2
00B2 - 00B3 2 bytes APM control
00C0 - 00DE 31 bytes DMA controller 2
00F0 - 00FF 16 bytes Numeric processor
0120 - 0127 8 bytes Audio controller
0170 - 0177 8 bytes Secondary IDE controller
01F0 - 01F7 8 bytes Primary IDE controller
0201 1 byte Audio / game port / joy stick
0202 1 byte Audio / game port / joy stick
0204 1 byte Audio / game port / joy stick
0205 1 byte Audio / game port / joy stick
0220 - 022F 16 bytes Audio (Sound Blaster
†
compatible)
0228 - 022F 8 bytes LPT3
0240 - 024F 16 bytes Audio (Sound Blaster compatible)
0260 - 026F 16 bytes Audio (Sound Blaster compatible)
0274 - 0277 4 bytes I/O read data port for ISA Plug and Play enumerator
0278 - 027F 8 bytes LPT2
0280 - 028F 16 bytes Audio (Sound Blaster compatible)
02E8 - 02EF 8 bytes COM4/Video (8514A)
02F8 - 02FF 8 bytes COM2
0300 - 0301 2 bytes MPU-401 (MIDI)
0330 - 0331 2 bytes MPU-401 (MIDI)
0332 - 0333 2 bytes MPU-401 (MIDI)
0334 - 0335 2 bytes MPU-401 (MIDI)
0376 - 0377 2 bytes Secondary IDE controller
0378 - 037F 8 bytes LPT1
0388 - 038B 4 bytes AdLib
†
(FM synthesizer)
0398 - 039B 4 bytes AdLib (FM synthesizer)
03A0 - 03A3 4 bytes AdLib (FM synthesizer)
03A8 - 03AB 4 bytes AdLib (FM synthesizer)
03B0 - 03BB 12 bytes Video (monochrome)
03C0 - 03DF 32 bytes Video (VGA
†
)
03E8 - 03EF 8 bytes COM3
continued