Intel AN430TX Product Specification - Page 48

I/O Map, Table 36., I/O Map

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AN430TX Motherboard Technical Product Specification 2.3 I/O Map Table 36. I/O Map Address (hex) 0000 - 000F 0020 - 0021 002E - 002F 0040 - 0043 0048 - 004B 0060 0061 0064 0070, bit 7 0070, bits 6:0 0071 0078 0079 0081 - 008F 00A0 - 00A1 00B2 - 00B3 00C0 - 00DE 00F0 0170 - 0177 01F0 - 01F7 0200 - 0207 0220 - 022F 0240 - 024F 0278 - 027F 02E8 - 02EF 02F8 - 02FF 0300 - 0301 0330 - 0331 0332 - 0333 0334 - 0335 0376 0377 0377, bit 7 0377, bits 6:0 0378 - 037F 0388- 038D Size 16 bytes 2 bytes 2 bytes 4 bytes 4 bytes 1 byte 1 byte 1 byte 1 bit 7 bits 1 byte 1 byte 1 byte 16 bytes 2 bytes 2 bytes 31 bytes 1 byte 8 bytes 8 bytes 8 bytes 16 bytes 16 bytes 8 bytes 8 bytes 8 bytes 2 bytes 2 bytes 2 bytes 2 bytes 1 byte 1 byte 1 bit 7 bits 8 bytes 6 bytes Description PIIX4 - DMA 1 PIIX4 - Interrupt Controller 1 Super I/O Controller Configuration Registers PIIX4 - Counter/Timer 1 PIIX4 - Counter/Timer 2 Keyboard Controller Byte - Reset IRQ PIIX4 - NMI, Speaker Control Keyboard Controller, CMD/STAT Byte PIIX4 - Enable NMI PIIX4 - Real Time Clock, Address PIIX4 - Real Time Clock, Data Reserved - Board Configuration Reserved - Board Configuration PIIX4 - DMA Page Registers PIIX4 - Interrupt Controller 2 APM Control PIIX4 - DMA 2 Reset Numeric Error Secondary IDE Channel Primary IDE Channel Audio / Game Port Audio (Sound Blaster compatible) Audio (Sound Blaster compatible) LPT2 COM4 / Video (8514A) COM2 MPU-401 (MIDI) MPU-401 (MIDI) MPU-401 (MIDI) MPU-401 (MIDI) Secondary IDE Channel Command Port Floppy Channel 2 Command Floppy Disk Change, Channel 2 Secondary IDE Channel Status Port LPT1 AdLib (FM synthesizer) continued  48

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AN430TX Motherboard Technical Product Specification
48
2.3 I/O Map
Table 36.
I/O Map
Address (hex)
Size
Description
0000 - 000F
16 bytes
PIIX4 - DMA 1
0020 - 0021
2 bytes
PIIX4 - Interrupt Controller 1
002E - 002F
2 bytes
Super I/O Controller Configuration Registers
0040 - 0043
4 bytes
PIIX4 - Counter/Timer 1
0048 - 004B
4 bytes
PIIX4 - Counter/Timer 2
0060
1 byte
Keyboard Controller Byte - Reset IRQ
0061
1 byte
PIIX4 - NMI, Speaker Control
0064
1 byte
Keyboard Controller, CMD/STAT Byte
0070, bit 7
1 bit
PIIX4 - Enable NMI
0070, bits 6:0
7 bits
PIIX4 - Real Time Clock, Address
0071
1 byte
PIIX4 - Real Time Clock, Data
0078
1 byte
Reserved - Board Configuration
0079
1 byte
Reserved - Board Configuration
0081 - 008F
16 bytes
PIIX4 - DMA Page Registers
00A0 - 00A1
2 bytes
PIIX4 - Interrupt Controller 2
00B2 - 00B3
2 bytes
APM Control
00C0 - 00DE
31 bytes
PIIX4 - DMA 2
00F0
1 byte
Reset Numeric Error
0170 - 0177
8 bytes
Secondary IDE Channel
01F0 - 01F7
8 bytes
Primary IDE Channel
0200 - 0207
8 bytes
Audio / Game Port
0220 - 022F
16 bytes
Audio (Sound Blaster compatible)
0240 - 024F
16 bytes
Audio (Sound Blaster compatible)
0278 - 027F
8 bytes
LPT2
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
1 byte
Secondary IDE Channel Command Port
0377
1 byte
Floppy Channel 2 Command
0377, bit 7
1 bit
Floppy Disk Change, Channel 2
0377, bits 6:0
7 bits
Secondary IDE Channel Status Port
0378 - 037F
8 bytes
LPT1
0388- 038D
6 bytes
AdLib (FM synthesizer)
continued