B.3 io map, Io map – ADLINK NuPRO-A40H User Manual

Page 90

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76

System Resources

B.3 IO Map

Hex Range

Device

000-01F

DMA controller 1, 8237A-5 equivalent

020-02D and 030-03F

Interrupt controller 1, 8259 equivalent

02E-02F

LPC SIO (ITE8783) configuration index/data registers

040-05F

Timer, 8254-2 equivalent

060, 062, 064, 066,

068-06F

8742 equivalent (keyboard)

061, 063, 065, 067

NMI control and status

070-07F

Real Time Clock Controller( bit 7 -NMI mask)

080-091

DMA page register

092

Reset (Bit 0)/ Fast Gate A20 (Bit 1)

93-9F

DMA page registers continued

0A0-0B1 and 0B4-0BF

Interrupt controller 2, 8259 equivalent

0B2 and 0B3

APM control and status port respectively

0C0-0DF

DMA controller 2, 8237A-5 equivalent

0F0

Co-processor error register

2E0-2EF

Serial Port 6

2E8-2EF

Serial Port 4

2F0-2F7

Serial Port 5

2F8-2FF

Serial Port 2

378-37F

Parallel port

3B0-3BB and 3BF

Mono/VGA mode video

3BC-3BE

Reserved for parallel port

3C0-3DF

VGA registers

3E8-3FF

Serial port 3

3F8-3FF

Serial port 1

4D0

Master PIC Edge/Level Trigger register

4D1

Slave PIC Edge/Level Trigger register

CF8

PCI configuration address register (32 bit I/O only)

CF9

Reset Control register (8 bit I/O)

CFC-CFF

PCI configuration data register

500-57F

GPIO Base Address for SB

400-45F

PM (ACPI) Base Address for SB

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