NEC EXPRESS5800/120Md Series User Manual page 172

I/O Port Address Assignments
Table B-3 lists the I/O port address assignments. In Table B-3 the addresses are
listed in hexadecimal notation and the I/O port address of a PCI device is set
according to its type and number.
Address Item
00 - 1F 8-bit DMA control registers
20 - 21 Master 8259 programming interface
2E - 2F Configuration
40 - 43 8254 programming interface
60 Keyboard/mouse
61 NMI status register
64 Keyboard/mouse
70 - 71 NMI enable register/real-time clock
80 - 8F 16-bit DMA control registers
A0 - A1 Slave 8259 programming interface
C0 - DF DMA controller page registers
E0 - E9 Base address register
F0 Reset IRQ 13
F1 - FF Logical device configuration
170 - 177 or BAR2 EDMA2 compatible mode primary command block registers
1F0 - 1F7 or BAR0 EDMA2 compatible mode secondary command block registers
278 - 27F (Parallel port 3)
2F8 - 2FF Serial port 2
376 or BAR3 EDMA2 compatible mode secondary command block registers
370 - 377 (Floppy disk drive 2), IDE 2
378 - 37F (Parallel port 2)
3B0 - 3BB VGA
3BC - 3BF Parallel port 1
3C0 - 3DF VGA
3F6 or BAR1 EDMA2 compatible mode primary command block registers
3F0 - 3F7 (Floppy disk drive 1), IDE 1
3F8 - 3FF Serial port 1
B-4 Interrupt Request/PCI IRQ Device/I/O Port Address Assignments
Table B-3. I/O Port Address Assignments